20554366472 has 16 divisors (see below), whose sum is σ = 39067375740. Its totient is φ = 10136399616.

The previous prime is 20554366433. The next prime is 20554366501. The reversal of 20554366472 is 27466345502.

It can be written as a sum of positive squares in 2 ways, for example, as 20553809956 + 556516 = 143366^2 + 746^2 .

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, 17597333 + ... + 17598500.

Almost surely, 2^20554366472 is an apocalyptic number.

It is an amenable number.

20554366472 is a deficient number, since it is larger than the sum of its proper divisors (18513009268).

20554366472 is a wasteful number, since it uses less digits than its factorization.

20554366472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35195912 (or 35195908 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 44.

The spelling of 20554366472 in words is "twenty billion, five hundred fifty-four million, three hundred sixty-six thousand, four hundred seventy-two".