91596718080 has 1360 divisors, whose sum is σ = 411080598720. Its totient is φ = 19025362944.

The previous prime is 91596718007. The next prime is 91596718117. The reversal of 91596718080 is 8081769519.

It is a tau number, because it is divible by the number of its divisors (1360).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3158507506 + ... + 3158507534.

Almost surely, 2^91596718080 is an apocalyptic number.

91596718080 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91596718080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205540299360).

91596718080 is an abundant number, since it is smaller than the sum of its proper divisors (319483880640).

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

91596718080 is an equidigital number, since it uses as much as digits as its factorization.

91596718080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 54.

The spelling of 91596718080 in words is "ninety-one billion, five hundred ninety-six million, seven hundred eighteen thousand, eighty".