2132666251 has 4 divisors (see below), whose sum is σ = 2134375000. Its totient is φ = 2130957504.

The previous prime is 2132666203. The next prime is 2132666279. The reversal of 2132666251 is 1526662312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2132666251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2132666281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 852501 + ... + 854998.

It is an arithmetic number, because the mean of its divisors is an integer number (533593750).

Almost surely, 2^2132666251 is an apocalyptic number.

2132666251 is a deficient number, since it is larger than the sum of its proper divisors (1708749).

2132666251 is a wasteful number, since it uses less digits than its factorization.

2132666251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1708748.

The product of its digits is 25920, while the sum is 34.

The square root of 2132666251 is about 46180.7995924713. The cubic root of 2132666251 is about 1287.1849861295.

The spelling of 2132666251 in words is "two billion, one hundred thirty-two million, six hundred sixty-six thousand, two hundred fifty-one".