55691165236 has 24 divisors (see below), whose sum is σ = 114392665856. Its totient is φ = 23222570400.

The previous prime is 55691165227. The next prime is 55691165251. The reversal of 55691165236 is 63256119655.

It is a self number, because there is not a number n which added to its sum of digits gives 55691165236.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26876940 + ... + 26879011.

Almost surely, 2^55691165236 is an apocalyptic number.

It is an amenable number.

55691165236 is an abundant number, since it is smaller than the sum of its proper divisors (58701500620).

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

55691165236 is a wasteful number, since it uses less digits than its factorization.

55691165236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53755999 (or 53755997 counting only the distinct ones).

The product of its digits is 1458000, while the sum is 49.

The spelling of 55691165236 in words is "fifty-five billion, six hundred ninety-one million, one hundred sixty-five thousand, two hundred thirty-six".