91799353160556 has 48 divisors (see below), whose sum is σ = 223884609984000. Its totient is φ = 29220495221632.

The previous prime is 91799353160549. The next prime is 91799353160561. The reversal of 91799353160556 is 65506135399719.

It is a Harshad number since it is a multiple of its sum of digits (69).

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, 277469361 + ... + 277800008.

It is an arithmetic number, because the mean of its divisors is an integer number (4664262708000).

Almost surely, 2^{91799353160556} is an apocalyptic number.

It is an amenable number.

91799353160556 is an abundant number, since it is smaller than the sum of its proper divisors (132085256823444).

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

91799353160556 is a wasteful number, since it uses less digits than its factorization.

91799353160556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555269998 (or 555269996 counting only the distinct ones).

The product of its (nonzero) digits is 206671500, while the sum is 69.

The spelling of 91799353160556 in words is "ninety-one trillion, seven hundred ninety-nine billion, three hundred fifty-three million, one hundred sixty thousand, five hundred fifty-six".