16431336355 has 12 divisors (see below), whose sum is σ = 22936804560. Its totient is φ = 11267201904.

The previous prime is 16431336329. The next prime is 16431336407. The reversal of 16431336355 is 55363313461.

It is a happy number.

It is not a de Polignac number, because 16431336355 - 2⁵ = 16431336323 is a prime.

It is a super-2 number, since 2×16431336355² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33533095 + ... + 33533584.

It is an arithmetic number, because the mean of its divisors is an integer number (1911400380).

Almost surely, 2^16431336355 is an apocalyptic number.

16431336355 is a deficient number, since it is larger than the sum of its proper divisors (6505468205).

16431336355 is an equidigital number, since it uses as much as digits as its factorization.

16431336355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67066698 (or 67066691 counting only the distinct ones).

The product of its digits is 291600, while the sum is 40.

The spelling of 16431336355 in words is "sixteen billion, four hundred thirty-one million, three hundred thirty-six thousand, three hundred fifty-five".