55665505700 has 72 divisors (see below), whose sum is σ = 138538757952. Its totient is φ = 19017809280.

The previous prime is 55665505639. The next prime is 55665505739. The reversal of 55665505700 is 750556655.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57602 + ... + 338598.

It is an arithmetic number, because the mean of its divisors is an integer number (1924149416).

Almost surely, 2^55665505700 is an apocalyptic number.

55665505700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55665505700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69269378976).

55665505700 is an abundant number, since it is smaller than the sum of its proper divisors (82873252252).

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

55665505700 is a wasteful number, since it uses less digits than its factorization.

55665505700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281301 (or 281294 counting only the distinct ones).

The product of its (nonzero) digits is 787500, while the sum is 44.

The spelling of 55665505700 in words is "fifty-five billion, six hundred sixty-five million, five hundred five thousand, seven hundred".