66736707423386 has 32 divisors (see below), whose sum is σ = 134406795374208. Its totient is φ = 24001213458240.

The previous prime is 66736707423383. The next prime is 66736707423403. The reversal of 66736707423386 is 68332470763766.

It is not an unprimeable number, because it can be changed into a prime (66736707423383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16667507345 + ... + 16667511348.

It is an arithmetic number, because the mean of its divisors is an integer number (4200212355444).

Almost surely, 2^{66736707423386} is an apocalyptic number.

66736707423386 is an abundant number, since it is smaller than the sum of its proper divisors (67670087950822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66736707423386 is a wasteful number, since it uses less digits than its factorization.

66736707423386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33335018726.

The product of its (nonzero) digits is 768144384, while the sum is 68.

The spelling of 66736707423386 in words is "sixty-six trillion, seven hundred thirty-six billion, seven hundred seven million, four hundred twenty-three thousand, three hundred eighty-six".