196651089169920 has 1680 divisors, whose sum is σ = 897109522463088. Its totient is φ = 40862354964480.

The previous prime is 196651089169919. The next prime is 196651089169921. The reversal of 196651089169920 is 29961980156691.

196651089169920 is a `hidden beast` number, since 1 + 9 + 6 + 6 + 510 + 8 + 9 + 16 + 9 + 92 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (196651089169919) and next prime (196651089169921).

It is a tau number, because it is divible by the number of its divisors (1680).

It is a super-2 number, since 2×196651089169920² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196651089169921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 1005805612 + ... + 1006001108.

Almost surely, 2^{196651089169920} is an apocalyptic number.

196651089169920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 196651089169920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (448554761231544).

196651089169920 is an abundant number, since it is smaller than the sum of its proper divisors (700458433293168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

196651089169920 is an equidigital number, since it uses as much as digits as its factorization.

196651089169920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195563 (or 195525 counting only the distinct ones).

The product of its (nonzero) digits is 113374080, while the sum is 72.

The spelling of 196651089169920 in words is "one hundred ninety-six trillion, six hundred fifty-one billion, eighty-nine million, one hundred sixty-nine thousand, nine hundred twenty".