16606147931 has 2 divisors, whose sum is σ = 16606147932. Its totient is φ = 16606147930.

The previous prime is 16606147919. The next prime is 16606147949. The reversal of 16606147931 is 13974160661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16606147931 - 2¹⁴ = 16606131547 is a prime.

It is a super-2 number, since 2×16606147931² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16606147981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8303073965 + 8303073966.

It is an arithmetic number, because the mean of its divisors is an integer number (8303073966).

Almost surely, 2^16606147931 is an apocalyptic number.

16606147931 is a deficient number, since it is larger than the sum of its proper divisors (1).

16606147931 is an equidigital number, since it uses as much as digits as its factorization.

16606147931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 44.

The spelling of 16606147931 in words is "sixteen billion, six hundred six million, one hundred forty-seven thousand, nine hundred thirty-one".