20479833264320 has 224 divisors, whose sum is σ = 53054590156800. Its totient is φ = 7501314355200.

The previous prime is 20479833264283. The next prime is 20479833264337. The reversal of 20479833264320 is 2346233897402.

It is a happy number.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156184385 + ... + 156315455.

Almost surely, 2^{20479833264320} is an apocalyptic number.

20479833264320 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 20479833264320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26527295078400).

20479833264320 is an abundant number, since it is smaller than the sum of its proper divisors (32574756892480).

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

20479833264320 is a wasteful number, since it uses less digits than its factorization.

20479833264320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131967 (or 131957 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 53.

The spelling of 20479833264320 in words is "twenty trillion, four hundred seventy-nine billion, eight hundred thirty-three million, two hundred sixty-four thousand, three hundred twenty".