16231616931547 has 4 divisors (see below), whose sum is σ = 16231902540120. Its totient is φ = 16231331322976.

The previous prime is 16231616931461. The next prime is 16231616931581. The reversal of 16231616931547 is 74513961613261.

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 16231616931547 - 2²³ = 16231608542939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16231616931587) 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, 142719022 + ... + 142832707.

It is an arithmetic number, because the mean of its divisors is an integer number (4057975635030).

Almost surely, 2^{16231616931547} is an apocalyptic number.

16231616931547 is a deficient number, since it is larger than the sum of its proper divisors (285608573).

16231616931547 is an equidigital number, since it uses as much as digits as its factorization.

16231616931547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285608572.

The product of its digits is 4898880, while the sum is 55.

The spelling of 16231616931547 in words is "sixteen trillion, two hundred thirty-one billion, six hundred sixteen million, nine hundred thirty-one thousand, five hundred forty-seven".