66236212870351 has 16 divisors (see below), whose sum is σ = 70311401602560. Its totient is φ = 62181105448320.

The previous prime is 66236212870327. The next prime is 66236212870379. The reversal of 66236212870351 is 15307821263266.

It is a cyclic number.

It is not a de Polignac number, because 66236212870351 - 2⁵ = 66236212870319 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 (66236212873351) 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, 7546170 + ... + 13762888.

It is an arithmetic number, because the mean of its divisors is an integer number (4394462600160).

Almost surely, 2^{66236212870351} is an apocalyptic number.

66236212870351 is a deficient number, since it is larger than the sum of its proper divisors (4075188732209).

66236212870351 is a wasteful number, since it uses less digits than its factorization.

66236212870351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6218334.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 66236212870351 in words is "sixty-six trillion, two hundred thirty-six billion, two hundred twelve million, eight hundred seventy thousand, three hundred fifty-one".