16187066699 has 2 divisors, whose sum is σ = 16187066700. Its totient is φ = 16187066698.

The previous prime is 16187066657. The next prime is 16187066711. The reversal of 16187066699 is 99666078161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16187066699 - 2¹² = 16187062603 is a prime.

It is a super-2 number, since 2×16187066699² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (16187066639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8093533349 + 8093533350.

It is an arithmetic number, because the mean of its divisors is an integer number (8093533350).

Almost surely, 2^16187066699 is an apocalyptic number.

16187066699 is a deficient number, since it is larger than the sum of its proper divisors (1).

16187066699 is an equidigital number, since it uses as much as digits as its factorization.

16187066699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5878656, while the sum is 59.

The spelling of 16187066699 in words is "sixteen billion, one hundred eighty-seven million, sixty-six thousand, six hundred ninety-nine".