196696657920 has 416 divisors, whose sum is σ = 757147207680. Its totient is φ = 42591191040.

The previous prime is 196696657919. The next prime is 196696657921. The reversal of 196696657920 is 29756696691.

It is an interprime number because it is at equal distance from previous prime (196696657919) and next prime (196696657921).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196696657921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8159485 + ... + 8183555.

Almost surely, 2^196696657920 is an apocalyptic number.

196696657920 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 196696657920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (378573603840).

196696657920 is an abundant number, since it is smaller than the sum of its proper divisors (560450549760).

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

196696657920 is a wasteful number, since it uses less digits than its factorization.

196696657920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24129 (or 24107 counting only the distinct ones).

The product of its (nonzero) digits is 66134880, while the sum is 66.

The spelling of 196696657920 in words is "one hundred ninety-six billion, six hundred ninety-six million, six hundred fifty-seven thousand, nine hundred twenty".