20130370560 has 352 divisors, whose sum is σ = 71970554880. Its totient is φ = 5335842816.

The previous prime is 20130370517. The next prime is 20130370567. The reversal of 20130370560 is 6507303102.

It is a happy number.

20130370560 is a `hidden beast` number, since 2 + 0 + 1 + 30 + 3 + 70 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130370567) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30827194 + ... + 30827846.

Almost surely, 2^20130370560 is an apocalyptic number.

20130370560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20130370560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35985277440).

20130370560 is an abundant number, since it is smaller than the sum of its proper divisors (51840184320).

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

20130370560 is a wasteful number, since it uses less digits than its factorization.

20130370560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910 (or 886 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

Adding to 20130370560 its reverse (6507303102), we get a palindrome (26637673662).

The spelling of 20130370560 in words is "twenty billion, one hundred thirty million, three hundred seventy thousand, five hundred sixty".