20265611307136 has 32 divisors (see below), whose sum is σ = 43478505031500. Its totient is φ = 9353359064064.

The previous prime is 20265611307091. The next prime is 20265611307157. The reversal of 20265611307136 is 63170311656202.

It can be written as a sum of positive squares in 2 ways, for example, as 20051982467136 + 213628840000 = 4477944^2 + 462200^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 20265611307092 and 20265611307101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6089424811 + ... + 6089428138.

Almost surely, 2^{20265611307136} is an apocalyptic number.

20265611307136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20265611307136 is an abundant number, since it is smaller than the sum of its proper divisors (23212893724364).

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

20265611307136 is a wasteful number, since it uses less digits than its factorization.

20265611307136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12178852976 (or 12178852964 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 20265611307136 in words is "twenty trillion, two hundred sixty-five billion, six hundred eleven million, three hundred seven thousand, one hundred thirty-six".