68616658 has 32 divisors (see below), whose sum is σ = 119501568. Its totient is φ = 29203200.

The previous prime is 68616589. The next prime is 68616679. The reversal of 68616658 is 85661686.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101016 + ... + 101692.

It is an arithmetic number, because the mean of its divisors is an integer number (3734424).

Almost surely, 2^68616658 is an apocalyptic number.

68616658 is a deficient number, since it is larger than the sum of its proper divisors (50884910).

68616658 is a wasteful number, since it uses less digits than its factorization.

68616658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978.

The product of its digits is 414720, while the sum is 46.

The square root of 68616658 is about 8283.5172481259. The cubic root of 68616658 is about 409.3956155576.

The spelling of 68616658 in words is "sixty-eight million, six hundred sixteen thousand, six hundred fifty-eight".