1591968966 has 32 divisors (see below), whose sum is σ = 3796996608. Its totient is φ = 435072000.

The previous prime is 1591968953. The next prime is 1591968971. The reversal of 1591968966 is 6698691951.

1591968966 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 823035 + ... + 824966.

It is an arithmetic number, because the mean of its divisors is an integer number (118656144).

Almost surely, 2^1591968966 is an apocalyptic number.

1591968966 is an abundant number, since it is smaller than the sum of its proper divisors (2205027642).

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

1591968966 is a wasteful number, since it uses less digits than its factorization.

1591968966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648036.

The product of its digits is 6298560, while the sum is 60.

The square root of 1591968966 is about 39899.4857861602. The cubic root of 1591968966 is about 1167.6469048041.

The spelling of 1591968966 in words is "one billion, five hundred ninety-one million, nine hundred sixty-eight thousand, nine hundred sixty-six".