15155255205 has 12 divisors (see below), whose sum is σ = 26269109100. Its totient is φ = 8082802752.

The previous prime is 15155255123. The next prime is 15155255249. The reversal of 15155255205 is 50255255151.

15155255205 is a `hidden beast` number, since 1 + 51 + 5 + 52 + 552 + 0 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2768232996 + 12387022209 = 52614^2 + 111297^2 .

It is not a de Polignac number, because 15155255205 - 2⁸ = 15155254949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15155255205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168391680 + ... + 168391769.

It is an arithmetic number, because the mean of its divisors is an integer number (2189092425).

Almost surely, 2^15155255205 is an apocalyptic number.

15155255205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15155255205 is a deficient number, since it is larger than the sum of its proper divisors (11113853895).

15155255205 is a wasteful number, since it uses less digits than its factorization.

15155255205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336783460 (or 336783457 counting only the distinct ones).

The product of its (nonzero) digits is 62500, while the sum is 36.

The spelling of 15155255205 in words is "fifteen billion, one hundred fifty-five million, two hundred fifty-five thousand, two hundred five".