16316320545 has 96 divisors (see below), whose sum is σ = 33136646400. Its totient is φ = 7271534592.

The previous prime is 16316320541. The next prime is 16316320561. The reversal of 16316320545 is 54502361361.

16316320545 is a `hidden beast` number, since 1 + 6 + 31 + 63 + 20 + 545 = 666.

It is not a de Polignac number, because 16316320545 - 2² = 16316320541 is a prime.

It is a super-2 number, since 2×16316320545² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16316320541) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10957161 + ... + 10958649.

It is an arithmetic number, because the mean of its divisors is an integer number (345173400).

Almost surely, 2^16316320545 is an apocalyptic number.

16316320545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16316320545 is an abundant number, since it is smaller than the sum of its proper divisors (16820325855).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16316320545 is a wasteful number, since it uses less digits than its factorization.

16316320545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2359 (or 2356 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 16316320545 in words is "sixteen billion, three hundred sixteen million, three hundred twenty thousand, five hundred forty-five".