55500566000 has 80 divisors (see below), whose sum is σ = 146400460128. Its totient is φ = 20182016000.

The previous prime is 55500565987. The next prime is 55500566003. The reversal of 55500566000 is 66500555.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55500566003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1239377 + ... + 1283376.

Almost surely, 2^55500566000 is an apocalyptic number.

55500566000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55500566000 is an abundant number, since it is smaller than the sum of its proper divisors (90899894128).

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

55500566000 is a wasteful number, since it uses less digits than its factorization.

55500566000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2522787 (or 2522771 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 32.

The spelling of 55500566000 in words is "fifty-five billion, five hundred million, five hundred sixty-six thousand".