16661774641022 has 32 divisors (see below), whose sum is σ = 29882248704000. Its totient is φ = 6818370217920.

The previous prime is 16661774640997. The next prime is 16661774641073. The reversal of 16661774641022 is 22014647716661.

It is a super-2 number, since 2×16661774641022² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 308776022 + ... + 308829977.

It is an arithmetic number, because the mean of its divisors is an integer number (933820272000).

Almost surely, 2^{16661774641022} is an apocalyptic number.

16661774641022 is a deficient number, since it is larger than the sum of its proper divisors (13220474062978).

16661774641022 is a wasteful number, since it uses less digits than its factorization.

16661774641022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617606096.

The product of its (nonzero) digits is 4064256, while the sum is 53.

The spelling of 16661774641022 in words is "sixteen trillion, six hundred sixty-one billion, seven hundred seventy-four million, six hundred forty-one thousand, twenty-two".