68164555 has 8 divisors (see below), whose sum is σ = 81900000. Its totient is φ = 54463296.

The previous prime is 68164549. The next prime is 68164637. The reversal of 68164555 is 55546186.

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

It is a cyclic number.

It is not a de Polignac number, because 68164555 - 2⁹ = 68164043 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3930 + ... + 12319.

It is an arithmetic number, because the mean of its divisors is an integer number (10237500).

Almost surely, 2^68164555 is an apocalyptic number.

68164555 is a deficient number, since it is larger than the sum of its proper divisors (13735445).

68164555 is a wasteful number, since it uses less digits than its factorization.

68164555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17093.

The product of its digits is 144000, while the sum is 40.

The square root of 68164555 is about 8256.1828347003. The cubic root of 68164555 is about 408.4944884740.

The spelling of 68164555 in words is "sixty-eight million, one hundred sixty-four thousand, five hundred fifty-five".