2115556124 has 24 divisors (see below), whose sum is σ = 4087456128. Its totient is φ = 950029040.

The previous prime is 2115556117. The next prime is 2115556127. The reversal of 2115556124 is 4216555112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115556127) 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, 285992 + ... + 293295.

It is an arithmetic number, because the mean of its divisors is an integer number (170310672).

Almost surely, 2^2115556124 is an apocalyptic number.

It is an amenable number.

2115556124 is a deficient number, since it is larger than the sum of its proper divisors (1971900004).

2115556124 is a wasteful number, since it uses less digits than its factorization.

2115556124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579385 (or 579383 counting only the distinct ones).

The product of its digits is 12000, while the sum is 32.

The square root of 2115556124 is about 45995.1750078201. The cubic root of 2115556124 is about 1283.7334285815.

The spelling of 2115556124 in words is "two billion, one hundred fifteen million, five hundred fifty-six thousand, one hundred twenty-four".