66314517237 has 32 divisors (see below), whose sum is σ = 98843804160. Its totient is φ = 43940413440.

The previous prime is 66314517229. The next prime is 66314517277. The reversal of 66314517237 is 73271541366.

66314517237 is a `hidden beast` number, since 6 + 631 + 4 + 5 + 1 + 7 + 2 + 3 + 7 = 666.

It is not a de Polignac number, because 66314517237 - 2³ = 66314517229 is a prime.

It is a super-2 number, since 2×66314517237² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66314517192 and 66314517201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66314517277) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3202437 + ... + 3223077.

It is an arithmetic number, because the mean of its divisors is an integer number (3088868880).

Almost surely, 2^66314517237 is an apocalyptic number.

It is an amenable number.

66314517237 is a deficient number, since it is larger than the sum of its proper divisors (32529286923).

66314517237 is a wasteful number, since it uses less digits than its factorization.

66314517237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21370 (or 21364 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The spelling of 66314517237 in words is "sixty-six billion, three hundred fourteen million, five hundred seventeen thousand, two hundred thirty-seven".