66736740070037 has 8 divisors (see below), whose sum is σ = 66950253420120. Its totient is φ = 66523228611840.

The previous prime is 66736740070009. The next prime is 66736740070051. The reversal of 66736740070037 is 73007004763766.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11044415942596 + 55692324127441 = 3323314^2 + 7462729^2 .

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 66736740070037 - 2¹⁸ = 66736739807893 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 (66736740070097) 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, 115879889 + ... + 116454377.

It is an arithmetic number, because the mean of its divisors is an integer number (8368781677515).

Almost surely, 2^{66736740070037} is an apocalyptic number.

It is an amenable number.

66736740070037 is a deficient number, since it is larger than the sum of its proper divisors (213513350083).

66736740070037 is a wasteful number, since it uses less digits than its factorization.

66736740070037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945943.

The product of its (nonzero) digits is 18670176, while the sum is 56.

The spelling of 66736740070037 in words is "sixty-six trillion, seven hundred thirty-six billion, seven hundred forty million, seventy thousand, thirty-seven".