91716513600 has 168 divisors, whose sum is σ = 311283156960. Its totient is φ = 23614330880.

The previous prime is 91716513563. The next prime is 91716513607. The reversal of 91716513600 is 631561719.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91716513607) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 190242 + ... + 468641.

Almost surely, 2^91716513600 is an apocalyptic number.

It is an amenable number.

91716513600 is an abundant number, since it is smaller than the sum of its proper divisors (219566643360).

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

91716513600 is a wasteful number, since it uses less digits than its factorization.

91716513600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658937 (or 658922 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 39.

The spelling of 91716513600 in words is "ninety-one billion, seven hundred sixteen million, five hundred thirteen thousand, six hundred".