2081684158 has 8 divisors (see below), whose sum is σ = 3206918952. Its totient is φ = 1012711176.

The previous prime is 2081684147. The next prime is 2081684167. The reversal of 2081684158 is 8514861802.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14065360 + ... + 14065507.

It is an arithmetic number, because the mean of its divisors is an integer number (400864869).

Almost surely, 2^2081684158 is an apocalyptic number.

2081684158 is a deficient number, since it is larger than the sum of its proper divisors (1125234794).

2081684158 is a wasteful number, since it uses less digits than its factorization.

2081684158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28130906.

The product of its (nonzero) digits is 122880, while the sum is 43.

The square root of 2081684158 is about 45625.4770714784. The cubic root of 2081684158 is about 1276.8452907276.

The spelling of 2081684158 in words is "two billion, eighty-one million, six hundred eighty-four thousand, one hundred fifty-eight".