66508237301 has 12 divisors (see below), whose sum is σ = 77073406080. Its totient is φ = 56905440960.

The previous prime is 66508237273. The next prime is 66508237343. The reversal of 66508237301 is 10373280566.

It is a de Polignac number, because none of the positive numbers 2^k-66508237301 is a prime.

It is a super-2 number, since 2×66508237301² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66508237361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10457381 + ... + 10463738.

It is an arithmetic number, because the mean of its divisors is an integer number (6422783840).

Almost surely, 2^66508237301 is an apocalyptic number.

It is an amenable number.

66508237301 is a deficient number, since it is larger than the sum of its proper divisors (10565168779).

66508237301 is a wasteful number, since it uses less digits than its factorization.

66508237301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20921164 (or 20921147 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 66508237301 in words is "sixty-six billion, five hundred eight million, two hundred thirty-seven thousand, three hundred one".