16667074646765 has 16 divisors (see below), whose sum is σ = 20065784044032. Its totient is φ = 13290139305024.

The previous prime is 16667074646741. The next prime is 16667074646773. The reversal of 16667074646765 is 56764647076661.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16667074646765 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13989092 + ... + 15133698.

It is an arithmetic number, because the mean of its divisors is an integer number (1254111502752).

Almost surely, 2^{16667074646765} is an apocalyptic number.

It is an amenable number.

16667074646765 is a deficient number, since it is larger than the sum of its proper divisors (3398709397267).

16667074646765 is a wasteful number, since it uses less digits than its factorization.

16667074646765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154116.

The product of its (nonzero) digits is 1280240640, while the sum is 71.

The spelling of 16667074646765 in words is "sixteen trillion, six hundred sixty-seven billion, seventy-four million, six hundred forty-six thousand, seven hundred sixty-five".