5312113155666 has 24 divisors (see below), whose sum is σ = 11510627831820. Its totient is φ = 1770542950176.

The previous prime is 5312113155563. The next prime is 5312113155697. The reversal of 5312113155666 is 6665513112135.

It can be written as a sum of positive squares in 2 ways, for example, as 4655794437441 + 656318718225 = 2157729^2 + 810135^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13249921 + ... + 13644948.

Almost surely, 2^{5312113155666} is an apocalyptic number.

5312113155666 is an abundant number, since it is smaller than the sum of its proper divisors (6198514676154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5312113155666 is a wasteful number, since it uses less digits than its factorization.

5312113155666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26905850 (or 26905847 counting only the distinct ones).

The product of its digits is 486000, while the sum is 45.

The spelling of 5312113155666 in words is "five trillion, three hundred twelve billion, one hundred thirteen million, one hundred fifty-five thousand, six hundred sixty-six".