16331009331 has 48 divisors (see below), whose sum is σ = 26964594944. Its totient is φ = 8561446848.

The previous prime is 16331009311. The next prime is 16331009393. The reversal of 16331009331 is 13390013361.

It is not a de Polignac number, because 16331009331 - 2⁹ = 16331008819 is a prime.

It is a super-2 number, since 2×16331009331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16331009311) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8746260 + ... + 8748126.

Almost surely, 2^16331009331 is an apocalyptic number.

16331009331 is a deficient number, since it is larger than the sum of its proper divisors (10633585613).

16331009331 is a wasteful number, since it uses less digits than its factorization.

16331009331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2248 (or 2069 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 30.

The spelling of 16331009331 in words is "sixteen billion, three hundred thirty-one million, nine thousand, three hundred thirty-one".