20575733740 has 24 divisors (see below), whose sum is σ = 44699009040. Its totient is φ = 7946490048.

The previous prime is 20575733719. The next prime is 20575733741. The reversal of 20575733740 is 4733757502.

It is not an unprimeable number, because it can be changed into a prime (20575733741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17737122 + ... + 17738281.

It is an arithmetic number, because the mean of its divisors is an integer number (1862458710).

Almost surely, 2^20575733740 is an apocalyptic number.

20575733740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20575733740 is an abundant number, since it is smaller than the sum of its proper divisors (24123275300).

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

20575733740 is a wasteful number, since it uses less digits than its factorization.

20575733740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35475441 (or 35475439 counting only the distinct ones).

The product of its (nonzero) digits is 617400, while the sum is 43.

The spelling of 20575733740 in words is "twenty billion, five hundred seventy-five million, seven hundred thirty-three thousand, seven hundred forty".