34065940666 has 4 divisors (see below), whose sum is σ = 51098911002. Its totient is φ = 17032970332.

The previous prime is 34065940627. The next prime is 34065940669. The reversal of 34065940666 is 66604956043.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66604956043 = 41 ⋅1624511123.

It can be written as a sum of positive squares in only one way, i.e., 32934627441 + 1131313225 = 181479^2 + 33635^2 .

It is not an unprimeable number, because it can be changed into a prime (34065940669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8516485165 + ... + 8516485168.

Almost surely, 2^34065940666 is an apocalyptic number.

34065940666 is a deficient number, since it is larger than the sum of its proper divisors (17032970336).

34065940666 is a wasteful number, since it uses less digits than its factorization.

34065940666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17032970335.

The product of its (nonzero) digits is 2799360, while the sum is 49.

The spelling of 34065940666 in words is "thirty-four billion, sixty-five million, nine hundred forty thousand, six hundred sixty-six".