54640636266 has 16 divisors (see below), whose sum is σ = 109285928064. Its totient is φ = 18212769504.

The previous prime is 54640636247. The next prime is 54640636273. The reversal of 54640636266 is 66263604645.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30850 + ... + 332013.

It is an arithmetic number, because the mean of its divisors is an integer number (6830370504).

Almost surely, 2^54640636266 is an apocalyptic number.

54640636266 is an abundant number, since it is smaller than the sum of its proper divisors (54645291798).

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

54640636266 is a wasteful number, since it uses less digits than its factorization.

54640636266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387965.

The product of its (nonzero) digits is 3732480, while the sum is 48.

The spelling of 54640636266 in words is "fifty-four billion, six hundred forty million, six hundred thirty-six thousand, two hundred sixty-six".