66502266707 has 8 divisors (see below), whose sum is σ = 67315304784. Its totient is φ = 65689509888.

The previous prime is 66502266689. The next prime is 66502266709. The reversal of 66502266707 is 70766220566.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66502266707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66502266709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426803 + ... + 561395.

It is an arithmetic number, because the mean of its divisors is an integer number (8414413098).

Almost surely, 2^66502266707 is an apocalyptic number.

66502266707 is a deficient number, since it is larger than the sum of its proper divisors (813038077).

66502266707 is a wasteful number, since it uses less digits than its factorization.

66502266707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140629.

The product of its (nonzero) digits is 1270080, while the sum is 47.

The spelling of 66502266707 in words is "sixty-six billion, five hundred two million, two hundred sixty-six thousand, seven hundred seven".