16672640512572 has 36 divisors (see below), whose sum is σ = 45976069293336. Its totient is φ = 5052315306720.

The previous prime is 16672640512531. The next prime is 16672640512589. The reversal of 16672640512572 is 27521504627661.

16672640512572 is a `hidden beast` number, since 1 + 6 + 6 + 7 + 2 + 64 + 0 + 5 + 1 + 2 + 572 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×16672640512572² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 21051313383 + ... + 21051314174.

It is an arithmetic number, because the mean of its divisors is an integer number (1277113035926).

Almost surely, 2^{16672640512572} is an apocalyptic number.

16672640512572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16672640512572 is an abundant number, since it is smaller than the sum of its proper divisors (29303428780764).

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

16672640512572 is a wasteful number, since it uses less digits than its factorization.

16672640512572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42102627578 (or 42102627573 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 54.

The spelling of 16672640512572 in words is "sixteen trillion, six hundred seventy-two billion, six hundred forty million, five hundred twelve thousand, five hundred seventy-two".