16731612073 has 8 divisors (see below), whose sum is σ = 18289848096. Its totient is φ = 15179572800.

The previous prime is 16731612067. The next prime is 16731612169. The reversal of 16731612073 is 37021613761.

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

It is a cyclic number.

It is not a de Polignac number, because 16731612073 - 2¹⁷ = 16731481001 is a prime.

It is a super-2 number, since 2×16731612073² (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 (16731612043) 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, 1543536 + ... + 1554337.

It is an arithmetic number, because the mean of its divisors is an integer number (2286231012).

Almost surely, 2^16731612073 is an apocalyptic number.

It is an amenable number.

16731612073 is a deficient number, since it is larger than the sum of its proper divisors (1558236023).

16731612073 is a wasteful number, since it uses less digits than its factorization.

16731612073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3098375.

The product of its (nonzero) digits is 31752, while the sum is 37.

The spelling of 16731612073 in words is "sixteen billion, seven hundred thirty-one million, six hundred twelve thousand, seventy-three".