115520201511 has 64 divisors (see below), whose sum is σ = 189314012160. Its totient is φ = 61655869440.

The previous prime is 115520201483. The next prime is 115520201527. The reversal of 115520201511 is 115102025511.

It is not a de Polignac number, because 115520201511 - 2⁷ = 115520201383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115520201581) 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 63 ways as a sum of consecutive naturals, for example, 3823215 + ... + 3853311.

It is an arithmetic number, because the mean of its divisors is an integer number (2958031440).

Almost surely, 2^115520201511 is an apocalyptic number.

115520201511 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

115520201511 is a deficient number, since it is larger than the sum of its proper divisors (73793810649).

115520201511 is a wasteful number, since it uses less digits than its factorization.

115520201511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30536.

The product of its (nonzero) digits is 500, while the sum is 24.

The spelling of 115520201511 in words is "one hundred fifteen billion, five hundred twenty million, two hundred one thousand, five hundred eleven".