55005505016 has 64 divisors (see below), whose sum is σ = 128756597760. Its totient is φ = 21402000000.

The previous prime is 55005504991. The next prime is 55005505021. The reversal of 55005505016 is 61050550055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403166 + ... + 522066.

It is an arithmetic number, because the mean of its divisors is an integer number (2011821840).

Almost surely, 2^55005505016 is an apocalyptic number.

55005505016 is a gapful number since it is divisible by the number (56) 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 55005505016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64378298880).

55005505016 is an abundant number, since it is smaller than the sum of its proper divisors (73751092744).

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

55005505016 is a wasteful number, since it uses less digits than its factorization.

55005505016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119676 (or 119672 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 32.

The spelling of 55005505016 in words is "fifty-five billion, five million, five hundred five thousand, sixteen".