55063640164 has 36 divisors (see below), whose sum is σ = 106564114944. Its totient is φ = 24873250272.

The previous prime is 55063640141. The next prime is 55063640173. The reversal of 55063640164 is 46104636055.

It is a super-2 number, since 2×55063640164² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 834772 + ... + 898315.

It is an arithmetic number, because the mean of its divisors is an integer number (2960114304).

Almost surely, 2^55063640164 is an apocalyptic number.

It is an amenable number.

55063640164 is a deficient number, since it is larger than the sum of its proper divisors (51500474780).

55063640164 is a wasteful number, since it uses less digits than its factorization.

55063640164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733164 (or 1733149 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 55063640164 in words is "fifty-five billion, sixty-three million, six hundred forty thousand, one hundred sixty-four".