15156168068 has 24 divisors (see below), whose sum is σ = 27439009752. Its totient is φ = 7319441664.

The previous prime is 15156168059. The next prime is 15156168073. The reversal of 15156168068 is 86086165151.

It can be written as a sum of positive squares in 4 ways, for example, as 1774768384 + 13381399684 = 42128^2 + 115678^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353471 + ... + 394022.

It is an arithmetic number, because the mean of its divisors is an integer number (1143292073).

Almost surely, 2^15156168068 is an apocalyptic number.

It is an amenable number.

15156168068 is a deficient number, since it is larger than the sum of its proper divisors (12282841684).

15156168068 is a wasteful number, since it uses less digits than its factorization.

15156168068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747671 (or 747669 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 47.

The spelling of 15156168068 in words is "fifteen billion, one hundred fifty-six million, one hundred sixty-eight thousand, sixty-eight".