6551015161156 has 24 divisors (see below), whose sum is σ = 11509885197720. Its totient is φ = 3262485211392.

The previous prime is 6551015161133. The next prime is 6551015161177. The reversal of 6551015161156 is 6511615101556.

It can be written as a sum of positive squares in 4 ways, for example, as 742992280900 + 5808022880256 = 861970^2 + 2409984^2 .

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, 1940466 + ... + 4106998.

It is an arithmetic number, because the mean of its divisors is an integer number (479578549905).

Almost surely, 2^{6551015161156} is an apocalyptic number.

It is an amenable number.

6551015161156 is a deficient number, since it is larger than the sum of its proper divisors (4958870036564).

6551015161156 is a wasteful number, since it uses less digits than its factorization.

6551015161156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169543 (or 2169541 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 43.

The spelling of 6551015161156 in words is "six trillion, five hundred fifty-one billion, fifteen million, one hundred sixty-one thousand, one hundred fifty-six".