16510799231 has 2 divisors, whose sum is σ = 16510799232. Its totient is φ = 16510799230.

The previous prime is 16510799147. The next prime is 16510799267. The reversal of 16510799231 is 13299701561.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16510799231 is a prime.

It is a super-2 number, since 2×16510799231² (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 (16510799131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8255399615 + 8255399616.

It is an arithmetic number, because the mean of its divisors is an integer number (8255399616).

Almost surely, 2^16510799231 is an apocalyptic number.

16510799231 is a deficient number, since it is larger than the sum of its proper divisors (1).

16510799231 is an equidigital number, since it uses as much as digits as its factorization.

16510799231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102060, while the sum is 44.

The spelling of 16510799231 in words is "sixteen billion, five hundred ten million, seven hundred ninety-nine thousand, two hundred thirty-one".