16627070909 has 2 divisors, whose sum is σ = 16627070910. Its totient is φ = 16627070908.

The previous prime is 16627070861. The next prime is 16627070923. The reversal of 16627070909 is 90907072661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13306776025 + 3320294884 = 115355^2 + 57622^2 .

It is a cyclic number.

It is not a de Polignac number, because 16627070909 - 2²⁸ = 16358635453 is a prime.

It is a super-3 number, since 3×16627070909³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16627073909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8313535454 + 8313535455.

It is an arithmetic number, because the mean of its divisors is an integer number (8313535455).

Almost surely, 2^16627070909 is an apocalyptic number.

It is an amenable number.

16627070909 is a deficient number, since it is larger than the sum of its proper divisors (1).

16627070909 is an equidigital number, since it uses as much as digits as its factorization.

16627070909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 285768, while the sum is 47.

The spelling of 16627070909 in words is "sixteen billion, six hundred twenty-seven million, seventy thousand, nine hundred nine".