20453141644250 has 32 divisors (see below), whose sum is σ = 43758035612928. Its totient is φ = 7012505706000.

The previous prime is 20453141644157. The next prime is 20453141644261. The reversal of 20453141644250 is 5244614135402.

It is a junction number, because it is equal to n+sod(n) for n = 20453141644198 and 20453141644207.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5843753006 + ... + 5843756505.

It is an arithmetic number, because the mean of its divisors is an integer number (1367438612904).

Almost surely, 2^{20453141644250} is an apocalyptic number.

20453141644250 is an abundant number, since it is smaller than the sum of its proper divisors (23304893968678).

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

20453141644250 is a wasteful number, since it uses less digits than its factorization.

20453141644250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11687509535 (or 11687509525 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 41.

Adding to 20453141644250 its reverse (5244614135402), we get a palindrome (25697755779652).

The spelling of 20453141644250 in words is "twenty trillion, four hundred fifty-three billion, one hundred forty-one million, six hundred forty-four thousand, two hundred fifty".