2117598120 has 128 divisors (see below), whose sum is σ = 7700400000. Its totient is φ = 513354240.

The previous prime is 2117598107. The next prime is 2117598121. The reversal of 2117598120 is 218957112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2117598121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77245 + ... + 101004.

It is an arithmetic number, because the mean of its divisors is an integer number (60159375).

Almost surely, 2^2117598120 is an apocalyptic number.

2117598120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2117598120 is an abundant number, since it is smaller than the sum of its proper divisors (5582801880).

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

2117598120 is a wasteful number, since it uses less digits than its factorization.

2117598120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178280 (or 178270 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 36.

The square root of 2117598120 is about 46017.3675909433. The cubic root of 2117598120 is about 1284.1463279824.

The spelling of 2117598120 in words is "two billion, one hundred seventeen million, five hundred ninety-eight thousand, one hundred twenty".