16697503731 has 8 divisors (see below), whose sum is σ = 22264968400. Its totient is φ = 11130854112.

The previous prime is 16697503687. The next prime is 16697503733. The reversal of 16697503731 is 13730579661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16697503731 - 2¹⁴ = 16697487347 is a prime.

It is a super-2 number, since 2×16697503731² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16697503733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154240 + ... + 239133.

It is an arithmetic number, because the mean of its divisors is an integer number (2783121050).

Almost surely, 2^16697503731 is an apocalyptic number.

16697503731 is a deficient number, since it is larger than the sum of its proper divisors (5567464669).

16697503731 is a wasteful number, since it uses less digits than its factorization.

16697503731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407525.

The product of its (nonzero) digits is 714420, while the sum is 48.

The spelling of 16697503731 in words is "sixteen billion, six hundred ninety-seven million, five hundred three thousand, seven hundred thirty-one".