2125964966 has 4 divisors (see below), whose sum is σ = 3188947452. Its totient is φ = 1062982482.

The previous prime is 2125964963. The next prime is 2125964969. The reversal of 2125964966 is 6694695212.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (2125964963) and next prime (2125964969).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125964963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 531491240 + ... + 531491243.

It is an arithmetic number, because the mean of its divisors is an integer number (797236863).

Almost surely, 2^2125964966 is an apocalyptic number.

2125964966 is a deficient number, since it is larger than the sum of its proper divisors (1062982486).

2125964966 is a wasteful number, since it uses less digits than its factorization.

2125964966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062982485.

The product of its digits is 1399680, while the sum is 50.

The square root of 2125964966 is about 46108.1876243255. The cubic root of 2125964966 is about 1285.8353697475.

The spelling of 2125964966 in words is "two billion, one hundred twenty-five million, nine hundred sixty-four thousand, nine hundred sixty-six".