55660616600 has 48 divisors (see below), whose sum is σ = 131183720520. Its totient is φ = 21959251200.

The previous prime is 55660616581. The next prime is 55660616621. The reversal of 55660616600 is 661606655.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1891586 + ... + 1920785.

Almost surely, 2^55660616600 is an apocalyptic number.

55660616600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55660616600 is an abundant number, since it is smaller than the sum of its proper divisors (75523103920).

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

55660616600 is a wasteful number, since it uses less digits than its factorization.

55660616600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3812460 (or 3812451 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 55660616600 in words is "fifty-five billion, six hundred sixty million, six hundred sixteen thousand, six hundred".