68648558 has 16 divisors (see below), whose sum is σ = 118247040. Its totient is φ = 29561400.

The previous prime is 68648521. The next prime is 68648561. The reversal of 68648558 is 85584686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81698 + ... + 82533.

It is an arithmetic number, because the mean of its divisors is an integer number (7390440).

Almost surely, 2^68648558 is an apocalyptic number.

68648558 is a deficient number, since it is larger than the sum of its proper divisors (49598482).

68648558 is a wasteful number, since it uses less digits than its factorization.

68648558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164263.

The product of its digits is 1843200, while the sum is 50.

The square root of 68648558 is about 8285.4425349525. The cubic root of 68648558 is about 409.4590486325.

The spelling of 68648558 in words is "sixty-eight million, six hundred forty-eight thousand, five hundred fifty-eight".