55510066872 has 96 divisors (see below), whose sum is σ = 162040722480. Its totient is φ = 17065635840.

The previous prime is 55510066847. The next prime is 55510066877. The reversal of 55510066872 is 27866001555.

55510066872 is a `hidden beast` number, since 5 + 5 + 510 + 0 + 6 + 68 + 72 = 666.

55510066872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55510066877) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1114747 + ... + 1163477.

Almost surely, 2^55510066872 is an apocalyptic number.

55510066872 is a gapful number since it is divisible by the number (52) 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 55510066872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81020361240).

55510066872 is an abundant number, since it is smaller than the sum of its proper divisors (106530655608).

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

55510066872 is a wasteful number, since it uses less digits than its factorization.

55510066872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49973 (or 49966 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 45.

The spelling of 55510066872 in words is "fifty-five billion, five hundred ten million, sixty-six thousand, eight hundred seventy-two".