20331702724 has 12 divisors (see below), whose sum is σ = 35625128364. Its totient is φ = 10153094624.

The previous prime is 20331702719. The next prime is 20331702733. The reversal of 20331702724 is 42720713302.

It can be written as a sum of positive squares in 2 ways, for example, as 16050356100 + 4281346624 = 126690^2 + 65432^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3185599 + ... + 3191974.

It is an arithmetic number, because the mean of its divisors is an integer number (2968760697).

Almost surely, 2^20331702724 is an apocalyptic number.

It is an amenable number.

20331702724 is a deficient number, since it is larger than the sum of its proper divisors (15293425640).

20331702724 is a wasteful number, since it uses less digits than its factorization.

20331702724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6378374 (or 6378372 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 31.

The spelling of 20331702724 in words is "twenty billion, three hundred thirty-one million, seven hundred two thousand, seven hundred twenty-four".