99705632736 has 96 divisors (see below), whose sum is σ = 262866764160. Its totient is φ = 33090771456.

The previous prime is 99705632693. The next prime is 99705632797. The reversal of 99705632736 is 63723650799.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×99705632736² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49187755 + ... + 49189781.

It is an arithmetic number, because the mean of its divisors is an integer number (2738195460).

Almost surely, 2^99705632736 is an apocalyptic number.

99705632736 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

99705632736 is an abundant number, since it is smaller than the sum of its proper divisors (163161131424).

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

99705632736 is a wasteful number, since it uses less digits than its factorization.

99705632736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4016 (or 4008 counting only the distinct ones).

The product of its (nonzero) digits is 12859560, while the sum is 57.

The spelling of 99705632736 in words is "ninety-nine billion, seven hundred five million, six hundred thirty-two thousand, seven hundred thirty-six".