55566110656 has 56 divisors (see below), whose sum is σ = 126613448576. Its totient is φ = 23701144320.

The previous prime is 55566110653. The next prime is 55566110657. The reversal of 55566110656 is 65601166555.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55566110651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199386 + ... + 388441.

Almost surely, 2^55566110656 is an apocalyptic number.

55566110656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

55566110656 is an abundant number, since it is smaller than the sum of its proper divisors (71047337920).

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

55566110656 is a wasteful number, since it uses less digits than its factorization.

55566110656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588057 (or 588047 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 46.

The spelling of 55566110656 in words is "fifty-five billion, five hundred sixty-six million, one hundred ten thousand, six hundred fifty-six".