55146677664155 has 64 divisors (see below), whose sum is σ = 82572818549760. Its totient is φ = 34348969728000.

The previous prime is 55146677664131. The next prime is 55146677664157.

It is a happy number.

55146677664155 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55146677664155 - 2²⁴ = 55146660886939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55146677664157) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3169158455 + ... + 3169175855.

It is an arithmetic number, because the mean of its divisors is an integer number (1290200289840).

Almost surely, 2^{55146677664155} is an apocalyptic number.

55146677664155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55146677664155 is a deficient number, since it is larger than the sum of its proper divisors (27426140885605).

55146677664155 is a wasteful number, since it uses less digits than its factorization.

55146677664155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23700.

The product of its digits is 635040000, while the sum is 68.

The spelling of 55146677664155 in words is "fifty-five trillion, one hundred forty-six billion, six hundred seventy-seven million, six hundred sixty-four thousand, one hundred fifty-five".