20748953360 has 40 divisors (see below), whose sum is σ = 48249173016. Its totient is φ = 8298229760.

The previous prime is 20748953273. The next prime is 20748953383. The reversal of 20748953360 is 6335984702.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 399360256 + 20349593104 = 19984^2 + 142652^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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, 579170 + ... + 613950.

Almost surely, 2^20748953360 is an apocalyptic number.

20748953360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20748953360 is an abundant number, since it is smaller than the sum of its proper divisors (27500219656).

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

20748953360 is a wasteful number, since it uses less digits than its factorization.

20748953360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42251 (or 42245 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 20748953360 in words is "twenty billion, seven hundred forty-eight million, nine hundred fifty-three thousand, three hundred sixty".