66701768 has 16 divisors (see below), whose sum is σ = 142932480. Its totient is φ = 28586448.

The previous prime is 66701741. The next prime is 66701773. The reversal of 66701768 is 86710766.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 595496 + ... + 595607.

It is an arithmetic number, because the mean of its divisors is an integer number (8933280).

Almost surely, 2^66701768 is an apocalyptic number.

It is an amenable number.

66701768 is an abundant number, since it is smaller than the sum of its proper divisors (76230712).

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

66701768 is a wasteful number, since it uses less digits than its factorization.

66701768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191116 (or 1191112 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 66701768 is about 8167.1150353108. The cubic root of 66701768 is about 405.5512850186.

The spelling of 66701768 in words is "sixty-six million, seven hundred one thousand, seven hundred sixty-eight".