91692663120 has 80 divisors (see below), whose sum is σ = 315830291520. Its totient is φ = 24451376256.

The previous prime is 91692663061. The next prime is 91692663191. The reversal of 91692663120 is 2136629619.

91692663120 is a `hidden beast` number, since 9 + 1 + 6 + 9 + 2 + 6 + 631 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 21222994 + ... + 21227313.

It is an arithmetic number, because the mean of its divisors is an integer number (3947878644).

Almost surely, 2^91692663120 is an apocalyptic number.

91692663120 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

91692663120 is an abundant number, since it is smaller than the sum of its proper divisors (224137628400).

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

91692663120 is a wasteful number, since it uses less digits than its factorization.

91692663120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42450329 (or 42450317 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The spelling of 91692663120 in words is "ninety-one billion, six hundred ninety-two million, six hundred sixty-three thousand, one hundred twenty".