20625223540115 has 8 divisors (see below), whose sum is σ = 24803956468368. Its totient is φ = 16464386685280.

The previous prime is 20625223540039. The next prime is 20625223540123. The reversal of 20625223540115 is 51104532252602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20625223540115 - 2⁸ = 20625223539859 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4474015817 + ... + 4474020426.

It is an arithmetic number, because the mean of its divisors is an integer number (3100494558546).

Almost surely, 2^{20625223540115} is an apocalyptic number.

20625223540115 is a deficient number, since it is larger than the sum of its proper divisors (4178732928253).

20625223540115 is an equidigital number, since it uses as much as digits as its factorization.

20625223540115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8948036709.

The product of its (nonzero) digits is 144000, while the sum is 38.

Adding to 20625223540115 its reverse (51104532252602), we get a palindrome (71729755792717).

The spelling of 20625223540115 in words is "twenty trillion, six hundred twenty-five billion, two hundred twenty-three million, five hundred forty thousand, one hundred fifteen".