196566383 has 16 divisors (see below), whose sum is σ = 214897536. Its totient is φ = 178716000.

The previous prime is 196566353. The next prime is 196566389. The reversal of 196566383 is 383665691.

It is a cyclic number.

It is not a de Polignac number, because 196566383 - 2¹⁸ = 196304239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196566389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348860 + ... + 349422.

It is an arithmetic number, because the mean of its divisors is an integer number (13431096).

Almost surely, 2^196566383 is an apocalyptic number.

196566383 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

196566383 is a deficient number, since it is larger than the sum of its proper divisors (18331153).

196566383 is a wasteful number, since it uses less digits than its factorization.

196566383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934.

The product of its digits is 699840, while the sum is 47.

The square root of 196566383 is about 14020.2133721281. The cubic root of 196566383 is about 581.4375586493.

The spelling of 196566383 in words is "one hundred ninety-six million, five hundred sixty-six thousand, three hundred eighty-three".