16276431057 has 32 divisors (see below), whose sum is σ = 23574354048. Its totient is φ = 9951215616.

The previous prime is 16276431049. The next prime is 16276431071. The reversal of 16276431057 is 75013467261.

It is a happy number.

It is not a de Polignac number, because 16276431057 - 2³ = 16276431049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16276431257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 282673 + ... + 335345.

It is an arithmetic number, because the mean of its divisors is an integer number (736698564).

Almost surely, 2^16276431057 is an apocalyptic number.

16276431057 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

16276431057 is a deficient number, since it is larger than the sum of its proper divisors (7297922991).

16276431057 is a wasteful number, since it uses less digits than its factorization.

16276431057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52849.

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 16276431057 in words is "sixteen billion, two hundred seventy-six million, four hundred thirty-one thousand, fifty-seven".