66202605313 has 8 divisors (see below), whose sum is σ = 71297272256. Its totient is φ = 61108246800.

The previous prime is 66202605281. The next prime is 66202605319. The reversal of 66202605313 is 31350620266.

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 66202605313 - 2⁵ = 66202605281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66202605319) 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, 569698 + ... + 675988.

It is an arithmetic number, because the mean of its divisors is an integer number (8912159032).

Almost surely, 2^66202605313 is an apocalyptic number.

It is an amenable number.

66202605313 is a deficient number, since it is larger than the sum of its proper divisors (5094666943).

66202605313 is a wasteful number, since it uses less digits than its factorization.

66202605313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154215.

The product of its (nonzero) digits is 38880, while the sum is 34.

The spelling of 66202605313 in words is "sixty-six billion, two hundred two million, six hundred five thousand, three hundred thirteen".