196665670 has 8 divisors (see below), whose sum is σ = 353998224. Its totient is φ = 78666264.

The previous prime is 196665661. The next prime is 196665701. The reversal of 196665670 is 76566691.

196665670 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 196665670.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9833274 + ... + 9833293.

It is an arithmetic number, because the mean of its divisors is an integer number (44249778).

Almost surely, 2^196665670 is an apocalyptic number.

196665670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

196665670 is a deficient number, since it is larger than the sum of its proper divisors (157332554).

196665670 is a wasteful number, since it uses less digits than its factorization.

196665670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19666574.

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 196665670 is about 14023.7537770741. The cubic root of 196665670 is about 581.5354381764.

The spelling of 196665670 in words is "one hundred ninety-six million, six hundred sixty-five thousand, six hundred seventy".