16944043972 has 24 divisors (see below), whose sum is σ = 32569790400. Its totient is φ = 7677163296.

The previous prime is 16944043969. The next prime is 16944044021. The reversal of 16944043972 is 27934044961.

It is a super-2 number, since 2×16944043972² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4844947 + ... + 4848442.

It is an arithmetic number, because the mean of its divisors is an integer number (1357074600).

Almost surely, 2^16944043972 is an apocalyptic number.

It is an amenable number.

16944043972 is a deficient number, since it is larger than the sum of its proper divisors (15625746428).

16944043972 is a wasteful number, since it uses less digits than its factorization.

16944043972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9693435 (or 9693433 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 49.

The spelling of 16944043972 in words is "sixteen billion, nine hundred forty-four million, forty-three thousand, nine hundred seventy-two".