66859000662 has 8 divisors (see below), whose sum is σ = 133718001336. Its totient is φ = 22286333552.

The previous prime is 66859000639. The next prime is 66859000693. The reversal of 66859000662 is 26600095866.

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

66859000662 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5571583383 + ... + 5571583394.

It is an arithmetic number, because the mean of its divisors is an integer number (16714750167).

Almost surely, 2^66859000662 is an apocalyptic number.

66859000662 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66859000662 is a wasteful number, since it uses less digits than its factorization.

66859000662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11143166782.

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 66859000662 in words is "sixty-six billion, eight hundred fifty-nine million, six hundred sixty-two", and thus it is an aban number.