1979850066 has 32 divisors (see below), whose sum is σ = 4065864768. Its totient is φ = 642332160.

The previous prime is 1979850053. The next prime is 1979850077. The reversal of 1979850066 is 6600589791.

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 15 ways as a sum of consecutive naturals, for example, 97225 + ... + 115811.

It is an arithmetic number, because the mean of its divisors is an integer number (127058274).

Almost surely, 2^1979850066 is an apocalyptic number.

1979850066 is an abundant number, since it is smaller than the sum of its proper divisors (2086014702).

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

1979850066 is a wasteful number, since it uses less digits than its factorization.

1979850066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19066.

The product of its (nonzero) digits is 816480, while the sum is 51.

The square root of 1979850066 is about 44495.5061326422. The cubic root of 1979850066 is about 1255.6755390174.

The spelling of 1979850066 in words is "one billion, nine hundred seventy-nine million, eight hundred fifty thousand, sixty-six".