20271455561624 has 16 divisors (see below), whose sum is σ = 38009288847600. Its totient is φ = 10135645202272.

The previous prime is 20271455561597. The next prime is 20271455561653. The reversal of 20271455561624 is 42616555417202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9272747 + ... + 11248410.

It is an arithmetic number, because the mean of its divisors is an integer number (2375580552975).

Almost surely, 2^{20271455561624} is an apocalyptic number.

It is an amenable number.

20271455561624 is a deficient number, since it is larger than the sum of its proper divisors (17737833285976).

20271455561624 is a wasteful number, since it uses less digits than its factorization.

20271455561624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20644642 (or 20644638 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 50.

The spelling of 20271455561624 in words is "twenty trillion, two hundred seventy-one billion, four hundred fifty-five million, five hundred sixty-one thousand, six hundred twenty-four".