16660254536513 has 16 divisors (see below), whose sum is σ = 19247424003456. Its totient is φ = 14125142102400.

The previous prime is 16660254536509. The next prime is 16660254536587. The reversal of 16660254536513 is 31563545206661.

It is not a de Polignac number, because 16660254536513 - 2² = 16660254536509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16660254536213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10675631 + ... + 12136292.

It is an arithmetic number, because the mean of its divisors is an integer number (1202964000216).

Almost surely, 2^{16660254536513} is an apocalyptic number.

It is an amenable number.

16660254536513 is a deficient number, since it is larger than the sum of its proper divisors (2587169466943).

16660254536513 is a wasteful number, since it uses less digits than its factorization.

16660254536513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22813064.

The product of its (nonzero) digits is 11664000, while the sum is 53.

The spelling of 16660254536513 in words is "sixteen trillion, six hundred sixty billion, two hundred fifty-four million, five hundred thirty-six thousand, five hundred thirteen".