16672391757 has 60 divisors (see below), whose sum is σ = 30496878720. Its totient is φ = 9025614864.

The previous prime is 16672391713. The next prime is 16672391761. The reversal of 16672391757 is 75719327661.

It is not a de Polignac number, because 16672391757 - 2⁷ = 16672391629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16672391257) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 35133 + ... + 185954.

It is an arithmetic number, because the mean of its divisors is an integer number (508281312).

Almost surely, 2^16672391757 is an apocalyptic number.

It is an amenable number.

16672391757 is a deficient number, since it is larger than the sum of its proper divisors (13824486963).

16672391757 is a wasteful number, since it uses less digits than its factorization.

16672391757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221132 (or 221116 counting only the distinct ones).

The product of its digits is 3333960, while the sum is 54.

The spelling of 16672391757 in words is "sixteen billion, six hundred seventy-two million, three hundred ninety-one thousand, seven hundred fifty-seven".