53666866635 has 16 divisors (see below), whose sum is σ = 88187716896. Its totient is φ = 27848752128.

The previous prime is 53666866609. The next prime is 53666866711.

53666866635 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 53666866635 - 2²⁵ = 53633312203 is a prime.

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, 48347974 + ... + 48349083.

It is an arithmetic number, because the mean of its divisors is an integer number (5511732306).

Almost surely, 2^53666866635 is an apocalyptic number.

53666866635 is a deficient number, since it is larger than the sum of its proper divisors (34520850261).

53666866635 is a wasteful number, since it uses less digits than its factorization.

53666866635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96697102.

The product of its digits is 83980800, while the sum is 60.

The spelling of 53666866635 in words is "fifty-three billion, six hundred sixty-six million, eight hundred sixty-six thousand, six hundred thirty-five".