16115660347999 has 2 divisors, whose sum is σ = 16115660348000. Its totient is φ = 16115660347998.

The previous prime is 16115660347991. The next prime is 16115660348009. The reversal of 16115660347999 is 99974306651161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16115660347999 - 2³ = 16115660347991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16115660347991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8057830173999 + 8057830174000.

It is an arithmetic number, because the mean of its divisors is an integer number (8057830174000).

Almost surely, 2^{16115660347999} is an apocalyptic number.

16115660347999 is a deficient number, since it is larger than the sum of its proper divisors (1).

16115660347999 is an equidigital number, since it uses as much as digits as its factorization.

16115660347999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 66134880, while the sum is 67.

The spelling of 16115660347999 in words is "sixteen trillion, one hundred fifteen billion, six hundred sixty million, three hundred forty-seven thousand, nine hundred ninety-nine".