115105640066 has 8 divisors (see below), whose sum is σ = 175488926844. Its totient is φ = 56609331120.

The previous prime is 115105640063. The next prime is 115105640099. The reversal of 115105640066 is 660046501511.

It can be written as a sum of positive squares in 2 ways, for example, as 100891993225 + 14213646841 = 317635^2 + 119221^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (115105640063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 471744305 + ... + 471744548.

Almost surely, 2^115105640066 is an apocalyptic number.

115105640066 is a deficient number, since it is larger than the sum of its proper divisors (60383286778).

115105640066 is an equidigital number, since it uses as much as digits as its factorization.

115105640066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943488916.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 115105640066 in words is "one hundred fifteen billion, one hundred five million, six hundred forty thousand, sixty-six".