66703700334037 has 4 divisors (see below), whose sum is σ = 71834754205900. Its totient is φ = 61572646462176.

The previous prime is 66703700334023. The next prime is 66703700334059. The reversal of 66703700334037 is 73043300730766.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13222575873796 + 53481124460241 = 3636286^2 + 7313079^2 .

It is a cyclic number.

It is not a de Polignac number, because 66703700334037 - 2¹⁵ = 66703700301269 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 (66703700334067) 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, 2565526935912 + ... + 2565526935937.

It is an arithmetic number, because the mean of its divisors is an integer number (17958688551475).

Almost surely, 2^{66703700334037} is an apocalyptic number.

It is an amenable number.

66703700334037 is a deficient number, since it is larger than the sum of its proper divisors (5131053871863).

66703700334037 is a wasteful number, since it uses less digits than its factorization.

66703700334037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5131053871862.

The product of its (nonzero) digits is 4000752, while the sum is 49.

The spelling of 66703700334037 in words is "sixty-six trillion, seven hundred three billion, seven hundred million, three hundred thirty-four thousand, thirty-seven".