91514761065 has 576 divisors, whose sum is σ = 221353606656. Its totient is φ = 35867639808.

The previous prime is 91514761061. The next prime is 91514761103. The reversal of 91514761065 is 56016741519.

91514761065 is a `hidden beast` number, since 9 + 1 + 514 + 76 + 1 + 0 + 65 = 666.

It is not a de Polignac number, because 91514761065 - 2² = 91514761061 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 91514761065.

It is not an unprimeable number, because it can be changed into a prime (91514761061) by changing a digit.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 943451097 + ... + 943451193.

It is an arithmetic number, because the mean of its divisors is an integer number (384294456).

Almost surely, 2^91514761065 is an apocalyptic number.

It is an amenable number.

91514761065 is an abundant number, since it is smaller than the sum of its proper divisors (129838845591).

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

91514761065 is a wasteful number, since it uses less digits than its factorization.

91514761065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The spelling of 91514761065 in words is "ninety-one billion, five hundred fourteen million, seven hundred sixty-one thousand, sixty-five".