2115066600 has 96 divisors (see below), whose sum is σ = 7285248000. Its totient is φ = 564016320.

The previous prime is 2115066571. The next prime is 2115066607. The reversal of 2115066600 is 66605112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2115066607) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 190440 + ... + 201239.

It is an arithmetic number, because the mean of its divisors is an integer number (75888000).

Almost surely, 2^2115066600 is an apocalyptic number.

2115066600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2115066600 is an abundant number, since it is smaller than the sum of its proper divisors (5170181400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2115066600 is a wasteful number, since it uses less digits than its factorization.

2115066600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391704 (or 391689 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2115066600 is about 45989.8532287286. The cubic root of 2115066600 is about 1283.6344054780.

The spelling of 2115066600 in words is "two billion, one hundred fifteen million, sixty-six thousand, six hundred".