20413330685 has 16 divisors (see below), whose sum is σ = 26987496192. Its totient is φ = 14699064000.

The previous prime is 20413330603. The next prime is 20413330687. The reversal of 20413330685 is 58603331402.

It is not a de Polignac number, because 20413330685 - 2⁸ = 20413330429 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 (20413330687) 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 15 ways as a sum of consecutive naturals, for example, 1831829 + ... + 1842938.

It is an arithmetic number, because the mean of its divisors is an integer number (1686718512).

Almost surely, 2^20413330685 is an apocalyptic number.

It is an amenable number.

20413330685 is a deficient number, since it is larger than the sum of its proper divisors (6574165507).

20413330685 is a wasteful number, since it uses less digits than its factorization.

20413330685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3674884.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 20413330685 in words is "twenty billion, four hundred thirteen million, three hundred thirty thousand, six hundred eighty-five".