55658195318 has 16 divisors (see below), whose sum is σ = 91080973584. Its totient is φ = 25298088960.

The previous prime is 55658195293. The next prime is 55658195363. The reversal of 55658195318 is 81359185655.

It is a happy number.

It is a super-2 number, since 2×55658195318² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 698246 + ... + 773862.

It is an arithmetic number, because the mean of its divisors is an integer number (5692560849).

Almost surely, 2^55658195318 is an apocalyptic number.

55658195318 is a deficient number, since it is larger than the sum of its proper divisors (35422778266).

55658195318 is a wasteful number, since it uses less digits than its factorization.

55658195318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109087.

The product of its digits is 6480000, while the sum is 56.

The spelling of 55658195318 in words is "fifty-five billion, six hundred fifty-eight million, one hundred ninety-five thousand, three hundred eighteen".