20476073600 has 96 divisors (see below), whose sum is σ = 50643698700. Its totient is φ = 8180490240.

The previous prime is 20476073599. The next prime is 20476073617. The reversal of 20476073600 is 637067402.

It can be written as a sum of positive squares in 6 ways, for example, as 2927242816 + 17548830784 = 54104^2 + 132472^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2994986 + ... + 3001814.

Almost surely, 2^20476073600 is an apocalyptic number.

20476073600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20476073600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25321849350).

20476073600 is an abundant number, since it is smaller than the sum of its proper divisors (30167625100).

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

20476073600 is an equidigital number, since it uses as much as digits as its factorization.

20476073600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7790 (or 7773 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 35.

The spelling of 20476073600 in words is "twenty billion, four hundred seventy-six million, seventy-three thousand, six hundred".