20196919232 has 56 divisors (see below), whose sum is σ = 46107217920. Its totient is φ = 8598470400.

The previous prime is 20196919159. The next prime is 20196919247. The reversal of 20196919232 is 23291969102.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81632 + ... + 216927.

Almost surely, 2^20196919232 is an apocalyptic number.

It is an amenable number.

20196919232 is an abundant number, since it is smaller than the sum of its proper divisors (25910298688).

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

20196919232 is a wasteful number, since it uses less digits than its factorization.

20196919232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298729 (or 298719 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 44.

The spelling of 20196919232 in words is "twenty billion, one hundred ninety-six million, nine hundred nineteen thousand, two hundred thirty-two".