16316605465 has 8 divisors (see below), whose sum is σ = 19911790080. Its totient is φ = 12832042032.

The previous prime is 16316605453. The next prime is 16316605477. The reversal of 16316605465 is 56450661361.

It is an interprime number because it is at equal distance from previous prime (16316605453) and next prime (16316605477).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16316605465 - 2⁷ = 16316605337 is a prime.

It is a super-2 number, since 2×16316605465² (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 7 ways as a sum of consecutive naturals, for example, 27654969 + ... + 27655558.

It is an arithmetic number, because the mean of its divisors is an integer number (2488973760).

Almost surely, 2^16316605465 is an apocalyptic number.

It is an amenable number.

16316605465 is a deficient number, since it is larger than the sum of its proper divisors (3595184615).

16316605465 is an equidigital number, since it uses as much as digits as its factorization.

16316605465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55310591.

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 16316605465 in words is "sixteen billion, three hundred sixteen million, six hundred five thousand, four hundred sixty-five".