68099966 has 8 divisors (see below), whose sum is σ = 111436344. Its totient is φ = 30954520.

The previous prime is 68099951. The next prime is 68100007. The reversal of 68099966 is 66999086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1547705 + ... + 1547748.

It is an arithmetic number, because the mean of its divisors is an integer number (13929543).

Almost surely, 2^68099966 is an apocalyptic number.

68099966 is a deficient number, since it is larger than the sum of its proper divisors (43336378).

68099966 is a wasteful number, since it uses less digits than its factorization.

68099966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3095466.

The product of its (nonzero) digits is 1259712, while the sum is 53.

The square root of 68099966 is about 8252.2703542722. The cubic root of 68099966 is about 408.3654253643.

The spelling of 68099966 in words is "sixty-eight million, ninety-nine thousand, nine hundred sixty-six".