2176940966 has 4 divisors (see below), whose sum is σ = 3265411452. Its totient is φ = 1088470482.

The previous prime is 2176940963. The next prime is 2176940981. The reversal of 2176940966 is 6690496712.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×2176940966³ (a number of 29 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2176940963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544235240 + ... + 544235243.

It is an arithmetic number, because the mean of its divisors is an integer number (816352863).

Almost surely, 2^2176940966 is an apocalyptic number.

2176940966 is a deficient number, since it is larger than the sum of its proper divisors (1088470486).

2176940966 is a wasteful number, since it uses less digits than its factorization.

2176940966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088470485.

The product of its (nonzero) digits is 979776, while the sum is 50.

The square root of 2176940966 is about 46657.6999647432. The cubic root of 2176940966 is about 1296.0314806374.

The spelling of 2176940966 in words is "two billion, one hundred seventy-six million, nine hundred forty thousand, nine hundred sixty-six".