16664653371239 has 2 divisors, whose sum is σ = 16664653371240. Its totient is φ = 16664653371238.

The previous prime is 16664653371211. The next prime is 16664653371263. The reversal of 16664653371239 is 93217335646661.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16664653371239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16664653371739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8332326685619 + 8332326685620.

It is an arithmetic number, because the mean of its divisors is an integer number (8332326685620).

Almost surely, 2^{16664653371239} is an apocalyptic number.

16664653371239 is a deficient number, since it is larger than the sum of its proper divisors (1).

16664653371239 is an equidigital number, since it uses as much as digits as its factorization.

16664653371239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 88179840, while the sum is 62.

The spelling of 16664653371239 in words is "sixteen trillion, six hundred sixty-four billion, six hundred fifty-three million, three hundred seventy-one thousand, two hundred thirty-nine".