20625406210616 has 16 divisors (see below), whose sum is σ = 38967847613640. Its totient is φ = 10233980180320.

The previous prime is 20625406210609. The next prime is 20625406210627. The reversal of 20625406210616 is 61601260452602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9840364511 + ... + 9840366606.

Almost surely, 2^{20625406210616} is an apocalyptic number.

It is an amenable number.

20625406210616 is a deficient number, since it is larger than the sum of its proper divisors (18342441403024).

20625406210616 is a wasteful number, since it uses less digits than its factorization.

20625406210616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19680731254 (or 19680731250 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 20625406210616 in words is "twenty trillion, six hundred twenty-five billion, four hundred six million, two hundred ten thousand, six hundred sixteen".