20455524441631 has 4 divisors (see below), whose sum is σ = 21344895069552. Its totient is φ = 19566153813712.

The previous prime is 20455524441623. The next prime is 20455524441679. The reversal of 20455524441631 is 13614442555402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20455524441631 - 2³ = 20455524441623 is a prime.

It is a super-2 number, since 2×20455524441631² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20455524441601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 444685313926 + ... + 444685313971.

It is an arithmetic number, because the mean of its divisors is an integer number (5336223767388).

Almost surely, 2^{20455524441631} is an apocalyptic number.

20455524441631 is a deficient number, since it is larger than the sum of its proper divisors (889370627921).

20455524441631 is an equidigital number, since it uses as much as digits as its factorization.

20455524441631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889370627920.

The product of its (nonzero) digits is 2304000, while the sum is 46.

The spelling of 20455524441631 in words is "twenty trillion, four hundred fifty-five billion, five hundred twenty-four million, four hundred forty-one thousand, six hundred thirty-one".