2158055600 has 60 divisors (see below), whose sum is σ = 5192306064. Its totient is φ = 861960960.

The previous prime is 2158055597. The next prime is 2158055639. The reversal of 2158055600 is 65508512.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 299237 + ... + 306363.

Almost surely, 2^2158055600 is an apocalyptic number.

2158055600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2158055600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2596153032).

2158055600 is an abundant number, since it is smaller than the sum of its proper divisors (3034250464).

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

2158055600 is a wasteful number, since it uses less digits than its factorization.

2158055600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7902 (or 7891 counting only the distinct ones).

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

The square root of 2158055600 is about 46454.8770313731. The cubic root of 2158055600 is about 1292.2728195355.

The spelling of 2158055600 in words is "two billion, one hundred fifty-eight million, fifty-five thousand, six hundred".