55490169656 has 32 divisors (see below), whose sum is σ = 108589939200. Its totient is φ = 26533346400.

The previous prime is 55490169653. The next prime is 55490169667. The reversal of 55490169656 is 65696109455.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55490169653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 956405 + ... + 1012763.

It is an arithmetic number, because the mean of its divisors is an integer number (3393435600).

Almost surely, 2^55490169656 is an apocalyptic number.

It is an amenable number.

55490169656 is a deficient number, since it is larger than the sum of its proper divisors (53099769544).

55490169656 is a wasteful number, since it uses less digits than its factorization.

55490169656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61739 (or 61735 counting only the distinct ones).

The product of its (nonzero) digits is 8748000, while the sum is 56.

The spelling of 55490169656 in words is "fifty-five billion, four hundred ninety million, one hundred sixty-nine thousand, six hundred fifty-six".