16161507323 has 8 divisors (see below), whose sum is σ = 17690024016. Its totient is φ = 14673751200.

The previous prime is 16161507319. The next prime is 16161507337. The reversal of 16161507323 is 32370516161.

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 16161507323 - 2² = 16161507319 is a prime.

It is a super-2 number, since 2×16161507323² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16161507023) 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, 10189313 + ... + 10190898.

It is an arithmetic number, because the mean of its divisors is an integer number (2211253002).

Almost surely, 2^16161507323 is an apocalyptic number.

16161507323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16161507323 is a deficient number, since it is larger than the sum of its proper divisors (1528516693).

16161507323 is a wasteful number, since it uses less digits than its factorization.

16161507323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20380285.

The product of its (nonzero) digits is 22680, while the sum is 35.

The spelling of 16161507323 in words is "sixteen billion, one hundred sixty-one million, five hundred seven thousand, three hundred twenty-three".