16612122566 has 16 divisors (see below), whose sum is σ = 26984890800. Its totient is φ = 7624298208.

The previous prime is 16612122563. The next prime is 16612122581. The reversal of 16612122566 is 66522121661.

It is a super-2 number, since 2×16612122566² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16612122563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1780061 + ... + 1789368.

It is an arithmetic number, because the mean of its divisors is an integer number (1686555675).

Almost surely, 2^16612122566 is an apocalyptic number.

16612122566 is a deficient number, since it is larger than the sum of its proper divisors (10372768234).

16612122566 is a wasteful number, since it uses less digits than its factorization.

16612122566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3569623.

The product of its digits is 51840, while the sum is 38.

The spelling of 16612122566 in words is "sixteen billion, six hundred twelve million, one hundred twenty-two thousand, five hundred sixty-six".