2180857162 has 8 divisors (see below), whose sum is σ = 3568675392. Its totient is φ = 991298700.

The previous prime is 2180857153. The next prime is 2180857163. The reversal of 2180857162 is 2617580812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2180857162² = 9512275922093388488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2180857163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49564914 + ... + 49564957.

It is an arithmetic number, because the mean of its divisors is an integer number (446084424).

Almost surely, 2^2180857162 is an apocalyptic number.

2180857162 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2180857162 is a deficient number, since it is larger than the sum of its proper divisors (1387818230).

2180857162 is a wasteful number, since it uses less digits than its factorization.

2180857162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99129884.

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 2180857162 is about 46699.6484140941. The cubic root of 2180857162 is about 1296.8081779840.

The spelling of 2180857162 in words is "two billion, one hundred eighty million, eight hundred fifty-seven thousand, one hundred sixty-two".