66705077662 has 8 divisors (see below), whose sum is σ = 100438064496. Its totient is φ = 33225722832.

The previous prime is 66705077629. The next prime is 66705077723. The reversal of 66705077662 is 26677050766.

It is a happy number.

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

It is a congruent number.

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, 63407343 + ... + 63408394.

It is an arithmetic number, because the mean of its divisors is an integer number (12554758062).

Almost surely, 2^66705077662 is an apocalyptic number.

66705077662 is a deficient number, since it is larger than the sum of its proper divisors (33732986834).

66705077662 is a wasteful number, since it uses less digits than its factorization.

66705077662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126816002.

The product of its (nonzero) digits is 4445280, while the sum is 52.

The spelling of 66705077662 in words is "sixty-six billion, seven hundred five million, seventy-seven thousand, six hundred sixty-two".