16661072464722 has 48 divisors (see below), whose sum is σ = 41270430170112. Its totient is φ = 4758640125120.

The previous prime is 16661072464607. The next prime is 16661072464723. The reversal of 16661072464722 is 22746427016661.

It is not an unprimeable number, because it can be changed into a prime (16661072464723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22781554 + ... + 23501517.

It is an arithmetic number, because the mean of its divisors is an integer number (859800628544).

Almost surely, 2^{16661072464722} is an apocalyptic number.

16661072464722 is an abundant number, since it is smaller than the sum of its proper divisors (24609357705390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16661072464722 is a wasteful number, since it uses less digits than its factorization.

16661072464722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46285943 (or 46285940 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 54.

The spelling of 16661072464722 in words is "sixteen trillion, six hundred sixty-one billion, seventy-two million, four hundred sixty-four thousand, seven hundred twenty-two".