66370810165337 has 4 divisors (see below), whose sum is σ = 66648512300160. Its totient is φ = 66093108030516.

The previous prime is 66370810165313. The next prime is 66370810165343. The reversal of 66370810165337 is 73356101807366.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66370810165337 - 2²⁴ = 66370793388121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66370810165357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138851067053 + ... + 138851067530.

It is an arithmetic number, because the mean of its divisors is an integer number (16662128075040).

Almost surely, 2^{66370810165337} is an apocalyptic number.

It is an amenable number.

66370810165337 is a deficient number, since it is larger than the sum of its proper divisors (277702134823).

66370810165337 is a wasteful number, since it uses less digits than its factorization.

66370810165337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277702134822.

The product of its (nonzero) digits is 11430720, while the sum is 56.

The spelling of 66370810165337 in words is "sixty-six trillion, three hundred seventy billion, eight hundred ten million, one hundred sixty-five thousand, three hundred thirty-seven".