115553220355 has 16 divisors (see below), whose sum is σ = 138885364800. Its totient is φ = 92295001728.

The previous prime is 115553220353. The next prime is 115553220359. The reversal of 115553220355 is 553022355511.

It is a cyclic number.

It is not a de Polignac number, because 115553220355 - 2¹ = 115553220353 is a prime.

It is a super-2 number, since 2×115553220355² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115553220353) 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, 18716049 + ... + 18722221.

It is an arithmetic number, because the mean of its divisors is an integer number (8680335300).

Almost surely, 2^115553220355 is an apocalyptic number.

115553220355 is a deficient number, since it is larger than the sum of its proper divisors (23332144445).

115553220355 is an equidigital number, since it uses as much as digits as its factorization.

115553220355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11550.

The product of its (nonzero) digits is 112500, while the sum is 37.

Adding to 115553220355 its reverse (553022355511), we get a palindrome (668575575866).

The spelling of 115553220355 in words is "one hundred fifteen billion, five hundred fifty-three million, two hundred twenty thousand, three hundred fifty-five".