2196713666 has 16 divisors (see below), whose sum is σ = 3795449856. Its totient is φ = 934034976.

The previous prime is 2196713611. The next prime is 2196713669. The reversal of 2196713666 is 6663176912.

It is a self number, because there is not a number n which added to its sum of digits gives 2196713666.

It is not an unprimeable number, because it can be changed into a prime (2196713669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 615971 + ... + 619526.

It is an arithmetic number, because the mean of its divisors is an integer number (237215616).

Almost surely, 2^2196713666 is an apocalyptic number.

2196713666 is a deficient number, since it is larger than the sum of its proper divisors (1598736190).

2196713666 is a wasteful number, since it uses less digits than its factorization.

2196713666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235633.

The product of its digits is 489888, while the sum is 47.

The square root of 2196713666 is about 46869.1120675440. The cubic root of 2196713666 is about 1299.9435214122.

The spelling of 2196713666 in words is "two billion, one hundred ninety-six million, seven hundred thirteen thousand, six hundred sixty-six".