20265655131606 has 16 divisors (see below), whose sum is σ = 40531373397504. Its totient is φ = 6755207854824.

The previous prime is 20265655131571. The next prime is 20265655131721. The reversal of 20265655131606 is 60613155656202.

It is a congruent 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, 2234415 + ... + 6747141.

It is an arithmetic number, because the mean of its divisors is an integer number (2533210837344).

Almost surely, 2^{20265655131606} is an apocalyptic number.

20265655131606 is an abundant number, since it is smaller than the sum of its proper divisors (20265718265898).

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

20265655131606 is a wasteful number, since it uses less digits than its factorization.

20265655131606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5261195.

The product of its (nonzero) digits is 1944000, while the sum is 48.

The spelling of 20265655131606 in words is "twenty trillion, two hundred sixty-five billion, six hundred fifty-five million, one hundred thirty-one thousand, six hundred six".