20676021724 has 24 divisors (see below), whose sum is σ = 38322758880. Its totient is φ = 9727021056.

The previous prime is 20676021703. The next prime is 20676021731. The reversal of 20676021724 is 42712067602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196732 + ... + 282940.

It is an arithmetic number, because the mean of its divisors is an integer number (1596781620).

Almost surely, 2^20676021724 is an apocalyptic number.

It is an amenable number.

20676021724 is a deficient number, since it is larger than the sum of its proper divisors (17646737156).

20676021724 is a wasteful number, since it uses less digits than its factorization.

20676021724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89757 (or 89755 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

It can be divided in two parts, 206760 and 21724, that added together give a square (228484 = 478²).

The spelling of 20676021724 in words is "twenty billion, six hundred seventy-six million, twenty-one thousand, seven hundred twenty-four".