91153816900 has 36 divisors (see below), whose sum is σ = 198103175620. Its totient is φ = 36406339200.

The previous prime is 91153816891. The next prime is 91153816931. The reversal of 91153816900 is 961835119.

It can be written as a sum of positive squares in 6 ways, for example, as 1374481476 + 89779335424 = 37074^2 + 299632^2 .

It is a super-2 number, since 2×91153816900² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 623415 + ... + 755614.

Almost surely, 2^91153816900 is an apocalyptic number.

It is an amenable number.

91153816900 is an abundant number, since it is smaller than the sum of its proper divisors (106949358720).

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

91153816900 is a wasteful number, since it uses less digits than its factorization.

91153816900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379704 (or 1379697 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 43.

The spelling of 91153816900 in words is "ninety-one billion, one hundred fifty-three million, eight hundred sixteen thousand, nine hundred".