16512634231 has 2 divisors, whose sum is σ = 16512634232. Its totient is φ = 16512634230.

The previous prime is 16512634219. The next prime is 16512634241. The reversal of 16512634231 is 13243621561.

It is a strong prime.

It is an emirp because it is prime and its reverse (13243621561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16512634231 - 2⁵ = 16512634199 is a prime.

It is a super-2 number, since 2×16512634231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16512634241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8256317115 + 8256317116.

It is an arithmetic number, because the mean of its divisors is an integer number (8256317116).

Almost surely, 2^16512634231 is an apocalyptic number.

16512634231 is a deficient number, since it is larger than the sum of its proper divisors (1).

16512634231 is an equidigital number, since it uses as much as digits as its factorization.

16512634231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 34.

The spelling of 16512634231 in words is "sixteen billion, five hundred twelve million, six hundred thirty-four thousand, two hundred thirty-one".