15455855451 has 16 divisors (see below), whose sum is σ = 21358964000. Its totient is φ = 9933435648.

The previous prime is 15455855413. The next prime is 15455855477.

15455855451 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 15455855451 - 2¹⁷ = 15455724379 is a prime.

It is a super-4 number, since 4×15455855451⁴ (a number of 42 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15455855451.

It is not an unprimeable number, because it can be changed into a prime (15455855251) 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, 626626 + ... + 650823.

It is an arithmetic number, because the mean of its divisors is an integer number (1334935250).

Almost surely, 2^15455855451 is an apocalyptic number.

15455855451 is a deficient number, since it is larger than the sum of its proper divisors (5903108549).

15455855451 is a wasteful number, since it uses less digits than its factorization.

15455855451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277598.

The product of its digits is 2000000, while the sum is 48.

The spelling of 15455855451 in words is "fifteen billion, four hundred fifty-five million, eight hundred fifty-five thousand, four hundred fifty-one".