20014460255521 has 4 divisors (see below), whose sum is σ = 20060051281600. Its totient is φ = 19968869229444.

The previous prime is 20014460255507. The next prime is 20014460255567. The reversal of 20014460255521 is 12555206441002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20014460255521 - 2²⁵ = 20014426701089 is a prime.

It is a super-2 number, since 2×20014460255521² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20014460255821) 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, 22795512381 + ... + 22795513258.

It is an arithmetic number, because the mean of its divisors is an integer number (5015012820400).

Almost surely, 2^{20014460255521} is an apocalyptic number.

It is an amenable number.

20014460255521 is a deficient number, since it is larger than the sum of its proper divisors (45591026079).

20014460255521 is an equidigital number, since it uses as much as digits as its factorization.

20014460255521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45591026078.

The product of its (nonzero) digits is 96000, while the sum is 37.

Adding to 20014460255521 its reverse (12555206441002), we get a palindrome (32569666696523).

The spelling of 20014460255521 in words is "twenty trillion, fourteen billion, four hundred sixty million, two hundred fifty-five thousand, five hundred twenty-one".