196956666 has 48 divisors (see below), whose sum is σ = 434779488. Its totient is φ = 64428000.

The previous prime is 196956647. The next prime is 196956667. The reversal of 196956666 is 666659691.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (196956667) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 237745 + ... + 238571.

It is an arithmetic number, because the mean of its divisors is an integer number (9057906).

Almost surely, 2^196956666 is an apocalyptic number.

196956666 is an abundant number, since it is smaller than the sum of its proper divisors (237822822).

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

196956666 is a wasteful number, since it uses less digits than its factorization.

196956666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067 (or 1064 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 54.

The square root of 196956666 is about 14034.1250528845. The cubic root of 196956666 is about 581.8221194439.

The spelling of 196956666 in words is "one hundred ninety-six million, nine hundred fifty-six thousand, six hundred sixty-six".