20130496656 has 40 divisors (see below), whose sum is σ = 54740826720. Its totient is φ = 6356998656.

The previous prime is 20130496613. The next prime is 20130496657. The reversal of 20130496656 is 65669403102.

It is not an unprimeable number, because it can be changed into a prime (20130496657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11035545 + ... + 11037368.

It is an arithmetic number, because the mean of its divisors is an integer number (1368520668).

Almost surely, 2^20130496656 is an apocalyptic number.

It is an amenable number.

20130496656 is an abundant number, since it is smaller than the sum of its proper divisors (34610330064).

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

20130496656 is a wasteful number, since it uses less digits than its factorization.

20130496656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22072943 (or 22072937 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 42.

Adding to 20130496656 its reverse (65669403102), we get a palindrome (85799899758).

The spelling of 20130496656 in words is "twenty billion, one hundred thirty million, four hundred ninety-six thousand, six hundred fifty-six".