55166885502 has 16 divisors (see below), whose sum is σ = 110336865552. Its totient is φ = 18388446080.

The previous prime is 55166885461. The next prime is 55166885533. The reversal of 55166885502 is 20558866155.

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, 148852 + ... + 363992.

It is an arithmetic number, because the mean of its divisors is an integer number (6896054097).

Almost surely, 2^55166885502 is an apocalyptic number.

55166885502 is an abundant number, since it is smaller than the sum of its proper divisors (55169980050).

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

55166885502 is a wasteful number, since it uses less digits than its factorization.

55166885502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257883.

The product of its (nonzero) digits is 2880000, while the sum is 51.

The spelling of 55166885502 in words is "fifty-five billion, one hundred sixty-six million, eight hundred eighty-five thousand, five hundred two".