15451555155 has 32 divisors (see below), whose sum is σ = 26140477440. Its totient is φ = 7772060160.

The previous prime is 15451555139. The next prime is 15451555211. The reversal of 15451555155 is 55155515451.

15451555155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15451555155 - 2⁴ = 15451555139 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58006 + ... + 185115.

It is an arithmetic number, because the mean of its divisors is an integer number (816889920).

Almost surely, 2^15451555155 is an apocalyptic number.

15451555155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15451555155 is a deficient number, since it is larger than the sum of its proper divisors (10688922285).

15451555155 is a wasteful number, since it uses less digits than its factorization.

15451555155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243371.

The product of its digits is 312500, while the sum is 42.

The spelling of 15451555155 in words is "fifteen billion, four hundred fifty-one million, five hundred fifty-five thousand, one hundred fifty-five".