20366722532 has 12 divisors (see below), whose sum is σ = 38383438716. Its totient is φ = 9400025760.

The previous prime is 20366722501. The next prime is 20366722543. The reversal of 20366722532 is 23522766302.

It can be written as a sum of positive squares in 2 ways, for example, as 5307996736 + 15058725796 = 72856^2 + 122714^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195833819 + ... + 195833922.

It is an arithmetic number, because the mean of its divisors is an integer number (3198619893).

Almost surely, 2^20366722532 is an apocalyptic number.

It is an amenable number.

20366722532 is a deficient number, since it is larger than the sum of its proper divisors (18016716184).

20366722532 is a wasteful number, since it uses less digits than its factorization.

20366722532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391667758 (or 391667756 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 38.

The spelling of 20366722532 in words is "twenty billion, three hundred sixty-six million, seven hundred twenty-two thousand, five hundred thirty-two".