55746628818 has 32 divisors (see below), whose sum is σ = 112819439616. Its totient is φ = 18361960848.

The previous prime is 55746628811. The next prime is 55746628849. The reversal of 55746628818 is 81882664755.

It is not an unprimeable number, because it can be changed into a prime (55746628811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188721 + ... + 383547.

It is an arithmetic number, because the mean of its divisors is an integer number (3525607488).

Almost surely, 2^55746628818 is an apocalyptic number.

55746628818 is an abundant number, since it is smaller than the sum of its proper divisors (57072810798).

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

55746628818 is a wasteful number, since it uses less digits than its factorization.

55746628818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195398.

The product of its digits is 25804800, while the sum is 60.

The spelling of 55746628818 in words is "fifty-five billion, seven hundred forty-six million, six hundred twenty-eight thousand, eight hundred eighteen".