215032807115 has 32 divisors (see below), whose sum is σ = 310627737600. Its totient is φ = 142694546400.

The previous prime is 215032807069. The next prime is 215032807117. The reversal of 215032807115 is 511708230512.

215032807115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 215032807115 - 2¹⁶ = 215032741579 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (215032807117) 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 31 ways as a sum of consecutive naturals, for example, 1969151 + ... + 2075480.

It is an arithmetic number, because the mean of its divisors is an integer number (9707116800).

Almost surely, 2^215032807115 is an apocalyptic number.

215032807115 is a deficient number, since it is larger than the sum of its proper divisors (95594930485).

215032807115 is an equidigital number, since it uses as much as digits as its factorization.

215032807115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4044688 (or 4044674 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 35.

The spelling of 215032807115 in words is "two hundred fifteen billion, thirty-two million, eight hundred seven thousand, one hundred fifteen".