16308716947 has 4 divisors (see below), whose sum is σ = 17268053256. Its totient is φ = 15349380640.

The previous prime is 16308716939. The next prime is 16308716971. The reversal of 16308716947 is 74961780361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16308716947 - 2³ = 16308716939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16308716894 and 16308716903.

It is not an unprimeable number, because it can be changed into a prime (16308716447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479668129 + ... + 479668162.

It is an arithmetic number, because the mean of its divisors is an integer number (4317013314).

Almost surely, 2^16308716947 is an apocalyptic number.

16308716947 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

16308716947 is a deficient number, since it is larger than the sum of its proper divisors (959336309).

16308716947 is an equidigital number, since it uses as much as digits as its factorization.

16308716947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959336308.

The product of its (nonzero) digits is 1524096, while the sum is 52.

The spelling of 16308716947 in words is "sixteen billion, three hundred eight million, seven hundred sixteen thousand, nine hundred forty-seven".