196665672 has 64 divisors (see below), whose sum is σ = 573880320. Its totient is φ = 54992448.

The previous prime is 196665661. The next prime is 196665701. The reversal of 196665672 is 276566691.

It is a super-3 number, since 3×196665672³ (a number of 26 digits) contains 333 as substring.

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, 4558 + ... + 20349.

It is an arithmetic number, because the mean of its divisors is an integer number (8966880).

Almost surely, 2^196665672 is an apocalyptic number.

196665672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

196665672 is an abundant number, since it is smaller than the sum of its proper divisors (377214648).

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

196665672 is a wasteful number, since it uses less digits than its factorization.

196665672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24970 (or 24966 counting only the distinct ones).

The product of its digits is 816480, while the sum is 48.

The square root of 196665672 is about 14023.7538483817. The cubic root of 196665672 is about 581.5354401477.

The spelling of 196665672 in words is "one hundred ninety-six million, six hundred sixty-five thousand, six hundred seventy-two".