20656361130411 has 16 divisors (see below), whose sum is σ = 27794840717600. Its totient is φ = 13644397651968.

The previous prime is 20656361130409. The next prime is 20656361130443. The reversal of 20656361130411 is 11403116365602.

It is not a de Polignac number, because 20656361130411 - 2¹ = 20656361130409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20656361130411.

It is not an unprimeable number, because it can be changed into a prime (20656361130611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29051595 + ... + 29754123.

It is an arithmetic number, because the mean of its divisors is an integer number (1737177544850).

Almost surely, 2^{20656361130411} is an apocalyptic number.

20656361130411 is a deficient number, since it is larger than the sum of its proper divisors (7138479587189).

20656361130411 is a wasteful number, since it uses less digits than its factorization.

20656361130411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792558.

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 20656361130411 in words is "twenty trillion, six hundred fifty-six billion, three hundred sixty-one million, one hundred thirty thousand, four hundred eleven".