55665260000 has 240 divisors, whose sum is σ = 157298448384. Its totient is φ = 18988992000.

The previous prime is 55665259999. The next prime is 55665260039. The reversal of 55665260000 is 6256655.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 31219109 + ... + 31220891.

Almost surely, 2^55665260000 is an apocalyptic number.

55665260000 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 55665260000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78649224192).

55665260000 is an abundant number, since it is smaller than the sum of its proper divisors (101633188384).

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

55665260000 is a wasteful number, since it uses less digits than its factorization.

55665260000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043 (or 2020 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

The spelling of 55665260000 in words is "fifty-five billion, six hundred sixty-five million, two hundred sixty thousand".