115620560001 has 20 divisors (see below), whose sum is σ = 173433830724. Its totient is φ = 76760524800.

The previous prime is 115620559997. The next prime is 115620560039. The reversal of 115620560001 is 100065026511.

It is a happy number.

115620560001 is a `hidden beast` number, since 1 + 1 + 56 + 2 + 0 + 5 + 600 + 0 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 61095974976 + 54524585025 = 247176^2 + 233505^2 .

It is not a de Polignac number, because 115620560001 - 2² = 115620559997 is a prime.

It is a super-2 number, since 2×115620560001² (a number of 23 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (115620560071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2941920 + ... + 2980961.

Almost surely, 2^115620560001 is an apocalyptic number.

It is an amenable number.

115620560001 is a deficient number, since it is larger than the sum of its proper divisors (57813270723).

115620560001 is an equidigital number, since it uses as much as digits as its factorization.

115620560001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5923134 (or 5923125 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

Adding to 115620560001 its reverse (100065026511), we get a palindrome (215685586512).

The spelling of 115620560001 in words is "one hundred fifteen billion, six hundred twenty million, five hundred sixty thousand, one".