68066475 has 24 divisors (see below), whose sum is σ = 112788912. Its totient is φ = 36220800.

The previous prime is 68066461. The next prime is 68066477. The reversal of 68066475 is 57466086.

It is a happy number.

It is not a de Polignac number, because 68066475 - 2⁴ = 68066459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68066477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48889 + ... + 50261.

It is an arithmetic number, because the mean of its divisors is an integer number (4699538).

Almost surely, 2^68066475 is an apocalyptic number.

68066475 is a deficient number, since it is larger than the sum of its proper divisors (44722437).

68066475 is a wasteful number, since it uses less digits than its factorization.

68066475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2047 (or 2042 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 68066475 is about 8250.2409055736. The cubic root of 68066475 is about 408.2984708077.

The spelling of 68066475 in words is "sixty-eight million, sixty-six thousand, four hundred seventy-five".