16442615664272 has 80 divisors (see below), whose sum is σ = 38035930877952. Its totient is φ = 6737355031680.

The previous prime is 16442615664259. The next prime is 16442615664281. The reversal of 16442615664272 is 27246651624461.

It is a happy number.

It is a super-3 number, since 3×16442615664272³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56).

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, 28240598 + ... + 28816949.

Almost surely, 2^{16442615664272} is an apocalyptic number.

It is an amenable number.

16442615664272 is an abundant number, since it is smaller than the sum of its proper divisors (21593315213680).

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

16442615664272 is a wasteful number, since it uses less digits than its factorization.

16442615664272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57057676 (or 57057670 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 56.

The spelling of 16442615664272 in words is "sixteen trillion, four hundred forty-two billion, six hundred fifteen million, six hundred sixty-four thousand, two hundred seventy-two".