16456606331 has 12 divisors (see below), whose sum is σ = 18264298416. Its totient is φ = 14815291920.

The previous prime is 16456606297. The next prime is 16456606379. The reversal of 16456606331 is 13360665461.

It is not a de Polignac number, because 16456606331 - 2⁶ = 16456606267 is a prime.

It is a super-2 number, since 2×16456606331² (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 (16456600331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 647756 + ... + 672681.

It is an arithmetic number, because the mean of its divisors is an integer number (1522024868).

Almost surely, 2^16456606331 is an apocalyptic number.

16456606331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16456606331 is a deficient number, since it is larger than the sum of its proper divisors (1807692085).

16456606331 is a wasteful number, since it uses less digits than its factorization.

16456606331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320562 (or 1320551 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 16456606331 in words is "sixteen billion, four hundred fifty-six million, six hundred six thousand, three hundred thirty-one".