20446053472 has 48 divisors (see below), whose sum is σ = 44747966592. Its totient is φ = 9132226560.

The previous prime is 20446053449. The next prime is 20446053487. The reversal of 20446053472 is 27435064402.

It is a super-2 number, since 2×20446053472² (a number of 21 digits) contains 22 as substring.

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, 779833 + ... + 805624.

It is an arithmetic number, because the mean of its divisors is an integer number (932249304).

Almost surely, 2^20446053472 is an apocalyptic number.

It is an amenable number.

20446053472 is an abundant number, since it is smaller than the sum of its proper divisors (24301913120).

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

20446053472 is a wasteful number, since it uses less digits than its factorization.

20446053472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585511 (or 1585503 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 37.

The spelling of 20446053472 in words is "twenty billion, four hundred forty-six million, fifty-three thousand, four hundred seventy-two".