91464595555 has 32 divisors (see below), whose sum is σ = 111478835520. Its totient is φ = 72033907200.

The previous prime is 91464595549. The next prime is 91464595571. The reversal of 91464595555 is 55559546419.

It is a happy number.

It is not a de Polignac number, because 91464595555 - 2¹⁹ = 91464071267 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 91464595555.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91739317 + ... + 91740313.

It is an arithmetic number, because the mean of its divisors is an integer number (3483713610).

Almost surely, 2^91464595555 is an apocalyptic number.

91464595555 is a deficient number, since it is larger than the sum of its proper divisors (20014239965).

91464595555 is a wasteful number, since it uses less digits than its factorization.

91464595555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1959.

The product of its digits is 24300000, while the sum is 58.

The spelling of 91464595555 in words is "ninety-one billion, four hundred sixty-four million, five hundred ninety-five thousand, five hundred fifty-five".