55510505166 has 64 divisors (see below), whose sum is σ = 116173440000. Its totient is φ = 17668000896.

The previous prime is 55510505143. The next prime is 55510505189. The reversal of 55510505166 is 66150501555.

It is an interprime number because it is at equal distance from previous prime (55510505143) and next prime (55510505189).

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 31 ways as a sum of consecutive naturals, for example, 2664960 + ... + 2685708.

It is an arithmetic number, because the mean of its divisors is an integer number (1815210000).

Almost surely, 2^55510505166 is an apocalyptic number.

55510505166 is an abundant number, since it is smaller than the sum of its proper divisors (60662934834).

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

55510505166 is a wasteful number, since it uses less digits than its factorization.

55510505166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21033.

The product of its (nonzero) digits is 112500, while the sum is 39.

The spelling of 55510505166 in words is "fifty-five billion, five hundred ten million, five hundred five thousand, one hundred sixty-six".