16351648531 has 2 divisors, whose sum is σ = 16351648532. Its totient is φ = 16351648530.

The previous prime is 16351648499. The next prime is 16351648541. The reversal of 16351648531 is 13584615361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16351648531 - 2⁵ = 16351648499 is a prime.

It is a super-2 number, since 2×16351648531² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16351648541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8175824265 + 8175824266.

It is an arithmetic number, because the mean of its divisors is an integer number (8175824266).

Almost surely, 2^16351648531 is an apocalyptic number.

16351648531 is a deficient number, since it is larger than the sum of its proper divisors (1).

16351648531 is an equidigital number, since it uses as much as digits as its factorization.

16351648531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 43.

The spelling of 16351648531 in words is "sixteen billion, three hundred fifty-one million, six hundred forty-eight thousand, five hundred thirty-one".