55565009715945 has 16 divisors (see below), whose sum is σ = 88904170653120. Its totient is φ = 29634620145984.

The previous prime is 55565009715877. The next prime is 55565009715953. The reversal of 55565009715945 is 54951790056555.

It is not a de Polignac number, because 55565009715945 - 2³⁵ = 55530649977577 is a prime.

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, 6622051 + ... + 12449159.

It is an arithmetic number, because the mean of its divisors is an integer number (5556510665820).

Almost surely, 2^{55565009715945} is an apocalyptic number.

It is an amenable number.

55565009715945 is a deficient number, since it is larger than the sum of its proper divisors (33339160937175).

55565009715945 is a wasteful number, since it uses less digits than its factorization.

55565009715945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6462824.

The product of its (nonzero) digits is 212625000, while the sum is 66.

The spelling of 55565009715945 in words is "fifty-five trillion, five hundred sixty-five billion, nine million, seven hundred fifteen thousand, nine hundred forty-five".