55150661060565 has 64 divisors (see below), whose sum is σ = 101970597980160. Its totient is φ = 24932368408320.

The previous prime is 55150661060519. The next prime is 55150661060587. The reversal of 55150661060565 is 56506016605155.

It is not a de Polignac number, because 55150661060565 - 2¹⁰ = 55150661059541 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4703979 + ... + 11507768.

It is an arithmetic number, because the mean of its divisors is an integer number (1593290593440).

Almost surely, 2^{55150661060565} is an apocalyptic number.

It is an amenable number.

55150661060565 is a deficient number, since it is larger than the sum of its proper divisors (46819936919595).

55150661060565 is a wasteful number, since it uses less digits than its factorization.

55150661060565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16212122.

The product of its (nonzero) digits is 4050000, while the sum is 51.

The spelling of 55150661060565 in words is "fifty-five trillion, one hundred fifty billion, six hundred sixty-one million, sixty thousand, five hundred sixty-five".