66313161312011 has 8 divisors (see below), whose sum is σ = 66376107942144. Its totient is φ = 66250215743400.

The previous prime is 66313161311987. The next prime is 66313161312049. The reversal of 66313161312011 is 11021316131366.

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 66313161312011 - 2¹⁸ = 66313161049867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66313161312061) 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, 187705586 + ... + 188058536.

It is an arithmetic number, because the mean of its divisors is an integer number (8297013492768).

Almost surely, 2^{66313161312011} is an apocalyptic number.

66313161312011 is a deficient number, since it is larger than the sum of its proper divisors (62946630133).

66313161312011 is a wasteful number, since it uses less digits than its factorization.

66313161312011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530761.

The product of its (nonzero) digits is 11664, while the sum is 35.

Adding to 66313161312011 its reverse (11021316131366), we get a palindrome (77334477443377).

The spelling of 66313161312011 in words is "sixty-six trillion, three hundred thirteen billion, one hundred sixty-one million, three hundred twelve thousand, eleven".