66506703301 has 8 divisors (see below), whose sum is σ = 67453171200. Its totient is φ = 65560506480.

The previous prime is 66506703299. The next prime is 66506703343. The reversal of 66506703301 is 10330760566.

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

It is a cyclic number.

It is not a de Polignac number, because 66506703301 - 2¹ = 66506703299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66506733301) 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, 454860 + ... + 583018.

It is an arithmetic number, because the mean of its divisors is an integer number (8431646400).

Almost surely, 2^66506703301 is an apocalyptic number.

It is an amenable number.

66506703301 is a deficient number, since it is larger than the sum of its proper divisors (946467899).

66506703301 is a wasteful number, since it uses less digits than its factorization.

66506703301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135539.

The product of its (nonzero) digits is 68040, while the sum is 37.

The spelling of 66506703301 in words is "sixty-six billion, five hundred six million, seven hundred three thousand, three hundred one".