16422665052661 has 16 divisors (see below), whose sum is σ = 18777179053440. Its totient is φ = 14070256551360.

The previous prime is 16422665052641. The next prime is 16422665052671. The reversal of 16422665052661 is 16625056622461.

It is a cyclic number.

It is not a de Polignac number, because 16422665052661 - 2⁷ = 16422665052533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16422665052599 and 16422665052608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16422665052641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 512727595 + ... + 512759623.

It is an arithmetic number, because the mean of its divisors is an integer number (1173573690840).

Almost surely, 2^{16422665052661} is an apocalyptic number.

It is an amenable number.

16422665052661 is a deficient number, since it is larger than the sum of its proper divisors (2354514000779).

16422665052661 is a wasteful number, since it uses less digits than its factorization.

16422665052661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62604.

The product of its (nonzero) digits is 6220800, while the sum is 52.

The spelling of 16422665052661 in words is "sixteen trillion, four hundred twenty-two billion, six hundred sixty-five million, fifty-two thousand, six hundred sixty-one".