55559168890 has 32 divisors (see below), whose sum is σ = 103583007360. Its totient is φ = 21430785600.

The previous prime is 55559168879. The next prime is 55559168933. The reversal of 55559168890 is 9886195555.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117075 + ... + 353305.

It is an arithmetic number, because the mean of its divisors is an integer number (3236968980).

Almost surely, 2^55559168890 is an apocalyptic number.

55559168890 is a deficient number, since it is larger than the sum of its proper divisors (48023838470).

55559168890 is a wasteful number, since it uses less digits than its factorization.

55559168890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237078.

The product of its (nonzero) digits is 19440000, while the sum is 61.

The spelling of 55559168890 in words is "fifty-five billion, five hundred fifty-nine million, one hundred sixty-eight thousand, eight hundred ninety".