16507299331 has 2 divisors, whose sum is σ = 16507299332. Its totient is φ = 16507299330.

The previous prime is 16507299257. The next prime is 16507299359. The reversal of 16507299331 is 13399270561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16507299331 - 2¹³ = 16507291139 is a prime.

It is a super-2 number, since 2×16507299331² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16507299371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8253649665 + 8253649666.

It is an arithmetic number, because the mean of its divisors is an integer number (8253649666).

Almost surely, 2^16507299331 is an apocalyptic number.

16507299331 is a deficient number, since it is larger than the sum of its proper divisors (1).

16507299331 is an equidigital number, since it uses as much as digits as its factorization.

16507299331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 306180, while the sum is 46.

The spelling of 16507299331 in words is "sixteen billion, five hundred seven million, two hundred ninety-nine thousand, three hundred thirty-one".