2170856716 has 36 divisors (see below), whose sum is σ = 4486342224. Its totient is φ = 900344160.

The previous prime is 2170856687. The next prime is 2170856717. The reversal of 2170856716 is 6176580712.

It is not an unprimeable number, because it can be changed into a prime (2170856717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13431 + ... + 67246.

Almost surely, 2^2170856716 is an apocalyptic number.

It is an amenable number.

2170856716 is an abundant number, since it is smaller than the sum of its proper divisors (2315485508).

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

2170856716 is a wasteful number, since it uses less digits than its factorization.

2170856716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80750 (or 80717 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 2170856716 is about 46592.4534232745. The cubic root of 2170856716 is about 1294.8229442447.

The spelling of 2170856716 in words is "two billion, one hundred seventy million, eight hundred fifty-six thousand, seven hundred sixteen".