20130226560 has 96 divisors (see below), whose sum is σ = 69512208480. Its totient is φ = 5368058880.

The previous prime is 20130226537. The next prime is 20130226561. The reversal of 20130226560 is 6562203102.

20130226560 is a `hidden beast` number, since 2 + 0 + 1 + 3 + 0 + 2 + 2 + 656 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130226561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1741656 + ... + 1753175.

It is an arithmetic number, because the mean of its divisors is an integer number (724085505).

Almost surely, 2^20130226560 is an apocalyptic number.

20130226560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20130226560 is an abundant number, since it is smaller than the sum of its proper divisors (49381981920).

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

20130226560 is a wasteful number, since it uses less digits than its factorization.

20130226560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3494856 (or 3494841 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 20130226560 its reverse (6562203102), we get a palindrome (26692429662).

The spelling of 20130226560 in words is "twenty billion, one hundred thirty million, two hundred twenty-six thousand, five hundred sixty".