20320634724 has 48 divisors (see below), whose sum is σ = 51114755328. Its totient is φ = 6246056448.

The previous prime is 20320634713. The next prime is 20320634731. The reversal of 20320634724 is 42743602302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85749 + ... + 219075.

It is an arithmetic number, because the mean of its divisors is an integer number (1064890736).

Almost surely, 2^20320634724 is an apocalyptic number.

It is an amenable number.

20320634724 is an abundant number, since it is smaller than the sum of its proper divisors (30794120604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20320634724 is a wasteful number, since it uses less digits than its factorization.

20320634724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134324 (or 134322 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 33.

The spelling of 20320634724 in words is "twenty billion, three hundred twenty million, six hundred thirty-four thousand, seven hundred twenty-four".