16316438769 has 8 divisors (see below), whose sum is σ = 24172501920. Its totient is φ = 10877625828.

The previous prime is 16316438767. The next prime is 16316438777. The reversal of 16316438769 is 96783461361.

It is a happy number.

It is not a de Polignac number, because 16316438769 - 2¹ = 16316438767 is a prime.

It is a super-2 number, since 2×16316438769² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16316438767) 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, 302156247 + ... + 302156300.

It is an arithmetic number, because the mean of its divisors is an integer number (3021562740).

Almost surely, 2^16316438769 is an apocalyptic number.

It is an amenable number.

16316438769 is a deficient number, since it is larger than the sum of its proper divisors (7856063151).

16316438769 is an equidigital number, since it uses as much as digits as its factorization.

16316438769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604312556 (or 604312550 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The spelling of 16316438769 in words is "sixteen billion, three hundred sixteen million, four hundred thirty-eight thousand, seven hundred sixty-nine".