68622266 has 4 divisors (see below), whose sum is σ = 102933402. Its totient is φ = 34311132.

The previous prime is 68622259. The next prime is 68622287. The reversal of 68622266 is 66222686.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66222686 = 2 ⋅33111343.

It can be written as a sum of positive squares in only one way, i.e., 55190041 + 13432225 = 7429^2 + 3665^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17155565 + ... + 17155568.

Almost surely, 2^68622266 is an apocalyptic number.

68622266 is a deficient number, since it is larger than the sum of its proper divisors (34311136).

68622266 is a wasteful number, since it uses less digits than its factorization.

68622266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34311135.

The product of its digits is 82944, while the sum is 38.

The square root of 68622266 is about 8283.8557447604. The cubic root of 68622266 is about 409.4067684765.

The spelling of 68622266 in words is "sixty-eight million, six hundred twenty-two thousand, two hundred sixty-six".