16512621013 has 8 divisors (see below), whose sum is σ = 18902661632. Its totient is φ = 14130354096.

The previous prime is 16512621007. The next prime is 16512621113. The reversal of 16512621013 is 31012621561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16512621013 - 2²⁵ = 16479066581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16512621113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1938870 + ... + 1947367.

It is an arithmetic number, because the mean of its divisors is an integer number (2362832704).

Almost surely, 2^16512621013 is an apocalyptic number.

It is an amenable number.

16512621013 is a deficient number, since it is larger than the sum of its proper divisors (2390040619).

16512621013 is an equidigital number, since it uses as much as digits as its factorization.

16512621013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3886851.

The product of its (nonzero) digits is 2160, while the sum is 28.

The spelling of 16512621013 in words is "sixteen billion, five hundred twelve million, six hundred twenty-one thousand, thirteen".