5156166665 has 16 divisors (see below), whose sum is σ = 6664896000. Its totient is φ = 3806749632.

The previous prime is 5156166643. The next prime is 5156166677. The reversal of 5156166665 is 5666616515.

5156166665 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 5156166665 - 2²⁴ = 5139389449 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 446636 + ... + 458034.

It is an arithmetic number, because the mean of its divisors is an integer number (416556000).

Almost surely, 2^5156166665 is an apocalyptic number.

It is an amenable number.

5156166665 is a deficient number, since it is larger than the sum of its proper divisors (1508729335).

5156166665 is a wasteful number, since it uses less digits than its factorization.

5156166665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18376.

The product of its digits is 972000, while the sum is 47.

The square root of 5156166665 is about 71806.4528089224. The cubic root of 5156166665 is about 1727.5965002992.

The spelling of 5156166665 in words is "five billion, one hundred fifty-six million, one hundred sixty-six thousand, six hundred sixty-five".