15165166855 has 4 divisors (see below), whose sum is σ = 18198200232. Its totient is φ = 12132133480.

The previous prime is 15165166847. The next prime is 15165166889. The reversal of 15165166855 is 55866156151.

15165166855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55866156151 = 13 ⋅4297396627.

It is not a de Polignac number, because 15165166855 - 2³ = 15165166847 is a prime.

It is a super-3 number, since 3×15165166855³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15165166799 and 15165166808.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1516516681 + ... + 1516516690.

It is an arithmetic number, because the mean of its divisors is an integer number (4549550058).

Almost surely, 2^15165166855 is an apocalyptic number.

15165166855 is a deficient number, since it is larger than the sum of its proper divisors (3033033377).

15165166855 is an equidigital number, since it uses as much as digits as its factorization.

15165166855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3033033376.

The product of its digits is 1080000, while the sum is 49.

The spelling of 15165166855 in words is "fifteen billion, one hundred sixty-five million, one hundred sixty-six thousand, eight hundred fifty-five".