16616660061155 has 64 divisors (see below), whose sum is σ = 24885065244672. Its totient is φ = 10348103869440.

The previous prime is 16616660061149. The next prime is 16616660061167. The reversal of 16616660061155 is 55116006661661.

It is not a de Polignac number, because 16616660061155 - 2²⁰ = 16616659012579 is a prime.

It is a super-2 number, since 2×16616660061155² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2002726967 + ... + 2002735263.

It is an arithmetic number, because the mean of its divisors is an integer number (388829144448).

Almost surely, 2^{16616660061155} is an apocalyptic number.

16616660061155 is a deficient number, since it is larger than the sum of its proper divisors (8268405183517).

16616660061155 is a wasteful number, since it uses less digits than its factorization.

16616660061155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12884.

The product of its (nonzero) digits is 1166400, while the sum is 50.

The spelling of 16616660061155 in words is "sixteen trillion, six hundred sixteen billion, six hundred sixty million, sixty-one thousand, one hundred fifty-five".