16316540465 has 16 divisors (see below), whose sum is σ = 20236055040. Its totient is φ = 12616786560.

The previous prime is 16316540411. The next prime is 16316540477. The reversal of 16316540465 is 56404561361.

It is not a de Polignac number, because 16316540465 - 2⁸ = 16316540209 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64541 + ... + 191829.

It is an arithmetic number, because the mean of its divisors is an integer number (1264753440).

Almost surely, 2^16316540465 is an apocalyptic number.

It is an amenable number.

16316540465 is a deficient number, since it is larger than the sum of its proper divisors (3919514575).

16316540465 is a wasteful number, since it uses less digits than its factorization.

16316540465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128152.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 16316540465 in words is "sixteen billion, three hundred sixteen million, five hundred forty thousand, four hundred sixty-five".