196651520 has 160 divisors (see below), whose sum is σ = 536215680. Its totient is φ = 68567040.

The previous prime is 196651519. The next prime is 196651547. The reversal of 196651520 is 25156691.

It is a tau number, because it is divible by the number of its divisors (160).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 632165 + ... + 632475.

It is an arithmetic number, because the mean of its divisors is an integer number (3351348).

Almost surely, 2^196651520 is an apocalyptic number.

196651520 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 196651520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268107840).

196651520 is an abundant number, since it is smaller than the sum of its proper divisors (339564160).

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

196651520 is a wasteful number, since it uses less digits than its factorization.

196651520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366 (or 350 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 196651520 is about 14023.2492668425. The cubic root of 196651520 is about 581.5214907772.

The spelling of 196651520 in words is "one hundred ninety-six million, six hundred fifty-one thousand, five hundred twenty".