1966366668 has 36 divisors (see below), whose sum is σ = 5337282552. Its totient is φ = 561818880.

The previous prime is 1966366667. The next prime is 1966366679. The reversal of 1966366668 is 8666636691.

It is a super-3 number, since 3×1966366668³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1966366667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1671493 + ... + 1672668.

Almost surely, 2^1966366668 is an apocalyptic number.

It is an amenable number.

1966366668 is an abundant number, since it is smaller than the sum of its proper divisors (3370915884).

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

1966366668 is a wasteful number, since it uses less digits than its factorization.

1966366668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3344182 (or 3344173 counting only the distinct ones).

The product of its digits is 10077696, while the sum is 57.

The square root of 1966366668 is about 44343.7331310750. The cubic root of 1966366668 is about 1252.8185291116.

The spelling of 1966366668 in words is "one billion, nine hundred sixty-six million, three hundred sixty-six thousand, six hundred sixty-eight".