2156715000 has 240 divisors, whose sum is σ = 7964419320. Its totient is φ = 522720000.

The previous prime is 2156714939. The next prime is 2156715019. The reversal of 2156715000 is 5176512.

2156715000 is a `hidden beast` number, since 2 + 156 + 7 + 1 + 500 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 492822 + ... + 497178.

Almost surely, 2^2156715000 is an apocalyptic number.

2156715000 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 2156715000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3982209660).

2156715000 is an abundant number, since it is smaller than the sum of its proper divisors (5807704320).

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

2156715000 is a wasteful number, since it uses less digits than its factorization.

2156715000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4400 (or 4378 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 2156715000 is about 46440.4457342950. The cubic root of 2156715000 is about 1292.0051743156.

The spelling of 2156715000 in words is "two billion, one hundred fifty-six million, seven hundred fifteen thousand".