2155210682 has 8 divisors (see below), whose sum is σ = 3277101396. Its totient is φ = 1062843552.

The previous prime is 2155210601. The next prime is 2155210691. The reversal of 2155210682 is 2860125512.

It can be written as a sum of positive squares in 2 ways, for example, as 2126039881 + 29170801 = 46109^2 + 5401^2 .

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

It is an unprimeable number.

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, 7380713 + ... + 7381004.

Almost surely, 2^2155210682 is an apocalyptic number.

2155210682 is a deficient number, since it is larger than the sum of its proper divisors (1121890714).

2155210682 is a wasteful number, since it uses less digits than its factorization.

2155210682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14761792.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 2155210682 is about 46424.2467036354. The cubic root of 2155210682 is about 1291.7047113891.

The spelling of 2155210682 in words is "two billion, one hundred fifty-five million, two hundred ten thousand, six hundred eighty-two".