66614544162111 has 16 divisors (see below), whose sum is σ = 96894023361408. Its totient is φ = 40372392280800.

The previous prime is 66614544162097. The next prime is 66614544162119. The reversal of 66614544162111 is 11126144541666.

It is a happy number.

It is not a de Polignac number, because 66614544162111 - 2²⁹ = 66614007291199 is a prime.

It is a super-3 number, since 3×66614544162111³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66614544162119) 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, 35321101 + ... + 37159241.

It is an arithmetic number, because the mean of its divisors is an integer number (6055876460088).

Almost surely, 2^{66614544162111} is an apocalyptic number.

66614544162111 is a deficient number, since it is larger than the sum of its proper divisors (30279479199297).

66614544162111 is a wasteful number, since it uses less digits than its factorization.

66614544162111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2936342.

The product of its digits is 829440, while the sum is 48.

The spelling of 66614544162111 in words is "sixty-six trillion, six hundred fourteen billion, five hundred forty-four million, one hundred sixty-two thousand, one hundred eleven".