66011131206202 has 16 divisors (see below), whose sum is σ = 121866703765632. Its totient is φ = 26114293663920.

The previous prime is 66011131206193. The next prime is 66011131206257. The reversal of 66011131206202 is 20260213111066.

It is a happy number.

It is a super-2 number, since 2×66011131206202² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181349261374 + ... + 181349261737.

It is an arithmetic number, because the mean of its divisors is an integer number (7616668985352).

Almost surely, 2^{66011131206202} is an apocalyptic number.

66011131206202 is a deficient number, since it is larger than the sum of its proper divisors (55855572559430).

66011131206202 is a wasteful number, since it uses less digits than its factorization.

66011131206202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362698523133.

The product of its (nonzero) digits is 5184, while the sum is 31.

Adding to 66011131206202 its reverse (20260213111066), we get a palindrome (86271344317268).

The spelling of 66011131206202 in words is "sixty-six trillion, eleven billion, one hundred thirty-one million, two hundred six thousand, two hundred two".