15655455455651 has 16 divisors (see below), whose sum is σ = 17152849834848. Its totient is φ = 14170429152000.

The previous prime is 15655455455641. The next prime is 15655455455671.

15655455455651 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 15655455455651 - 2¹⁸ = 15655455193507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15655455455641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53937125 + ... + 54226601.

It is an arithmetic number, because the mean of its divisors is an integer number (1072053114678).

Almost surely, 2^{15655455455651} is an apocalyptic number.

15655455455651 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

15655455455651 is a deficient number, since it is larger than the sum of its proper divisors (1497394379197).

15655455455651 is a wasteful number, since it uses less digits than its factorization.

15655455455651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310822.

The product of its digits is 225000000, while the sum is 62.

The spelling of 15655455455651 in words is "fifteen trillion, six hundred fifty-five billion, four hundred fifty-five million, four hundred fifty-five thousand, six hundred fifty-one".