2115651115 has 8 divisors (see below), whose sum is σ = 2540266848. Its totient is φ = 1691530560.

The previous prime is 2115651101. The next prime is 2115651119. The reversal of 2115651115 is 5111565112.

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

It is not a de Polignac number, because 2115651115 - 2²⁷ = 1981433387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2115651119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114327 + ... + 131536.

It is an arithmetic number, because the mean of its divisors is an integer number (317533356).

Almost surely, 2^2115651115 is an apocalyptic number.

2115651115 is a deficient number, since it is larger than the sum of its proper divisors (424615733).

2115651115 is a wasteful number, since it uses less digits than its factorization.

2115651115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247589.

The product of its digits is 1500, while the sum is 28.

The square root of 2115651115 is about 45996.2076154111. The cubic root of 2115651115 is about 1283.7526420160.

The spelling of 2115651115 in words is "two billion, one hundred fifteen million, six hundred fifty-one thousand, one hundred fifteen".