55662677838 has 48 divisors (see below), whose sum is σ = 122381715456. Its totient is φ = 18280841040.

The previous prime is 55662677813. The next prime is 55662677897. The reversal of 55662677838 is 83877626655.

It is a happy number.

55662677838 is a `hidden beast` number, since 5 + 566 + 2 + 67 + 7 + 8 + 3 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2040195 + ... + 2067297.

It is an arithmetic number, because the mean of its divisors is an integer number (2549619072).

Almost surely, 2^55662677838 is an apocalyptic number.

55662677838 is an abundant number, since it is smaller than the sum of its proper divisors (66719037618).

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

55662677838 is a wasteful number, since it uses less digits than its factorization.

55662677838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28789 (or 28786 counting only the distinct ones).

The product of its digits is 101606400, while the sum is 63.

The spelling of 55662677838 in words is "fifty-five billion, six hundred sixty-two million, six hundred seventy-seven thousand, eight hundred thirty-eight".