66363736158719 has 16 divisors (see below), whose sum is σ = 71316987681888. Its totient is φ = 61527115195392.

The previous prime is 66363736158679. The next prime is 66363736158803. The reversal of 66363736158719 is 91785163736366.

It is a cyclic number.

It is not a de Polignac number, because 66363736158719 - 2¹⁶ = 66363736093183 is a prime.

It is a super-2 number, since 2×66363736158719² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66363736158619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138715787 + ... + 139193379.

It is an arithmetic number, because the mean of its divisors is an integer number (4457311730118).

Almost surely, 2^{66363736158719} is an apocalyptic number.

66363736158719 is a deficient number, since it is larger than the sum of its proper divisors (4953251523169).

66363736158719 is a wasteful number, since it uses less digits than its factorization.

66363736158719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599674.

The product of its digits is 617258880, while the sum is 71.

The spelling of 66363736158719 in words is "sixty-six trillion, three hundred sixty-three billion, seven hundred thirty-six million, one hundred fifty-eight thousand, seven hundred nineteen".