20252031421776 has 160 divisors (see below), whose sum is σ = 65229379814400. Its totient is φ = 5260101949440.

The previous prime is 20252031421733. The next prime is 20252031421841. The reversal of 20252031421776 is 67712413025202.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 154460535 + ... + 154591593.

It is an arithmetic number, because the mean of its divisors is an integer number (407683623840).

Almost surely, 2^{20252031421776} is an apocalyptic number.

It is an amenable number.

20252031421776 is an abundant number, since it is smaller than the sum of its proper divisors (44977348392624).

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

20252031421776 is a wasteful number, since it uses less digits than its factorization.

20252031421776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172897 (or 172891 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 42.

Adding to 20252031421776 its reverse (67712413025202), we get a palindrome (87964444446978).

The spelling of 20252031421776 in words is "twenty trillion, two hundred fifty-two billion, thirty-one million, four hundred twenty-one thousand, seven hundred seventy-six".