2158669982 has 16 divisors (see below), whose sum is σ = 3725416800. Its totient is φ = 918934368.

The previous prime is 2158669969. The next prime is 2158670051. The reversal of 2158669982 is 2899668512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515333 + ... + 519504.

It is an arithmetic number, because the mean of its divisors is an integer number (232838550).

Almost surely, 2^2158669982 is an apocalyptic number.

2158669982 is a deficient number, since it is larger than the sum of its proper divisors (1566746818).

2158669982 is a wasteful number, since it uses less digits than its factorization.

2158669982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034995.

The product of its digits is 3732480, while the sum is 56.

The square root of 2158669982 is about 46461.4892357100. The cubic root of 2158669982 is about 1292.3954413109.

The spelling of 2158669982 in words is "two billion, one hundred fifty-eight million, six hundred sixty-nine thousand, nine hundred eighty-two".