16720042448 has 40 divisors (see below), whose sum is σ = 34151623680. Its totient is φ = 7918197120.

The previous prime is 16720042429. The next prime is 16720042457. The reversal of 16720042448 is 84424002761.

It is a congruent number.

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, 335303 + ... + 381926.

It is an arithmetic number, because the mean of its divisors is an integer number (853790592).

Almost surely, 2^16720042448 is an apocalyptic number.

It is an amenable number.

16720042448 is an abundant number, since it is smaller than the sum of its proper divisors (17431581232).

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

16720042448 is a wasteful number, since it uses less digits than its factorization.

16720042448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717315 (or 717309 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 38.

The spelling of 16720042448 in words is "sixteen billion, seven hundred twenty million, forty-two thousand, four hundred forty-eight".