99197717632 has 64 divisors (see below), whose sum is σ = 216429393600. Its totient is φ = 45007524864.

The previous prime is 99197717627. The next prime is 99197717669. The reversal of 99197717632 is 23671779199.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407028 + ... + 603379.

It is an arithmetic number, because the mean of its divisors is an integer number (3381709275).

Almost surely, 2^99197717632 is an apocalyptic number.

It is an amenable number.

99197717632 is an abundant number, since it is smaller than the sum of its proper divisors (117231675968).

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

99197717632 is a wasteful number, since it uses less digits than its factorization.

99197717632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010493 (or 1010481 counting only the distinct ones).

The product of its digits is 9001692, while the sum is 61.

The spelling of 99197717632 in words is "ninety-nine billion, one hundred ninety-seven million, seven hundred seventeen thousand, six hundred thirty-two".