55066000165515 has 12 divisors (see below), whose sum is σ = 95447733620304. Its totient is φ = 29368533421584.

The previous prime is 55066000165511. The next prime is 55066000165549. The reversal of 55066000165515 is 51556100066055.

It is not a de Polignac number, because 55066000165515 - 2² = 55066000165511 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1223688892567 = 55066000165515 / (5 + 5 + 0 + 6 + 6 + 0 + 0 + 0 + 1 + 6 + 5 + 5 + 1 + 5).

It is not an unprimeable number, because it can be changed into a prime (55066000165511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 611844446239 + ... + 611844446328.

It is an arithmetic number, because the mean of its divisors is an integer number (7953977801692).

Almost surely, 2^{55066000165515} is an apocalyptic number.

55066000165515 is a deficient number, since it is larger than the sum of its proper divisors (40381733454789).

55066000165515 is a wasteful number, since it uses less digits than its factorization.

55066000165515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223688892578 (or 1223688892575 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 45.

The spelling of 55066000165515 in words is "fifty-five trillion, sixty-six billion, one hundred sixty-five thousand, five hundred fifteen".