20195617432 has 32 divisors (see below), whose sum is σ = 40173148800. Its totient is φ = 9485115904.

The previous prime is 20195617417. The next prime is 20195617451. The reversal of 20195617432 is 23471659102.

It is a happy number.

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, 76648 + ... + 215095.

It is an arithmetic number, because the mean of its divisors is an integer number (1255410900).

Almost surely, 2^20195617432 is an apocalyptic number.

It is an amenable number.

20195617432 is a deficient number, since it is larger than the sum of its proper divisors (19977531368).

20195617432 is a wasteful number, since it uses less digits than its factorization.

20195617432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292275 (or 292271 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 20195617432 in words is "twenty billion, one hundred ninety-five million, six hundred seventeen thousand, four hundred thirty-two".