68066580 has 24 divisors (see below), whose sum is σ = 190586592. Its totient is φ = 18151072.

The previous prime is 68066561. The next prime is 68066599. The reversal of 68066580 is 8566086.

It is an interprime number because it is at equal distance from previous prime (68066561) and next prime (68066599).

It is a congruent number.

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, 567162 + ... + 567281.

It is an arithmetic number, because the mean of its divisors is an integer number (7941108).

Almost surely, 2^68066580 is an apocalyptic number.

68066580 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68066580 is an abundant number, since it is smaller than the sum of its proper divisors (122520012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68066580 is a wasteful number, since it uses less digits than its factorization.

68066580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134455 (or 1134453 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 68066580 is about 8250.2472690217. The cubic root of 68066580 is about 408.2986807560.

The spelling of 68066580 in words is "sixty-eight million, sixty-six thousand, five hundred eighty".