20724315562 has 16 divisors (see below), whose sum is σ = 32982152832. Its totient is φ = 9732748480.

The previous prime is 20724315553. The next prime is 20724315587. The reversal of 20724315562 is 26551342702.

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 7 ways as a sum of consecutive naturals, for example, 604018 + ... + 637405.

It is an arithmetic number, because the mean of its divisors is an integer number (2061384552).

Almost surely, 2^20724315562 is an apocalyptic number.

20724315562 is a deficient number, since it is larger than the sum of its proper divisors (12257837270).

20724315562 is a wasteful number, since it uses less digits than its factorization.

20724315562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241933.

The product of its (nonzero) digits is 100800, while the sum is 37.

The spelling of 20724315562 in words is "twenty billion, seven hundred twenty-four million, three hundred fifteen thousand, five hundred sixty-two".