16699931748187 has 2 divisors, whose sum is σ = 16699931748188. Its totient is φ = 16699931748186.

The previous prime is 16699931748151. The next prime is 16699931748191. The reversal of 16699931748187 is 78184713999661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16699931748187 - 2²³ = 16699923359579 is a prime.

It is not a weakly prime, because it can be changed into another prime (16699931745187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8349965874093 + 8349965874094.

It is an arithmetic number, because the mean of its divisors is an integer number (8349965874094).

Almost surely, 2^{16699931748187} is an apocalyptic number.

16699931748187 is a deficient number, since it is larger than the sum of its proper divisors (1).

16699931748187 is an equidigital number, since it uses as much as digits as its factorization.

16699931748187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 987614208, while the sum is 79.

The spelling of 16699931748187 in words is "sixteen trillion, six hundred ninety-nine billion, nine hundred thirty-one million, seven hundred forty-eight thousand, one hundred eighty-seven".