696112666 has 4 divisors (see below), whose sum is σ = 1044169002. Its totient is φ = 348056332.

The previous prime is 696112661. The next prime is 696112667. The reversal of 696112666 is 666211696.

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

It can be written as a sum of positive squares in only one way, i.e., 419389441 + 276723225 = 20479^2 + 16635^2 .

It is not an unprimeable number, because it can be changed into a prime (696112661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174028165 + ... + 174028168.

Almost surely, 2^696112666 is an apocalyptic number.

696112666 is a deficient number, since it is larger than the sum of its proper divisors (348056336).

696112666 is a wasteful number, since it uses less digits than its factorization.

696112666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348056335.

The product of its digits is 139968, while the sum is 43.

The square root of 696112666 is about 26383.9471269937. The cubic root of 696112666 is about 886.2573405721.

The spelling of 696112666 in words is "six hundred ninety-six million, one hundred twelve thousand, six hundred sixty-six".