66144640122314 has 8 divisors (see below), whose sum is σ = 106849034043780. Its totient is φ = 30528295441056.

The previous prime is 66144640122263. The next prime is 66144640122329. The reversal of 66144640122314 is 41322104644166.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 66141899076289 + 2741046025 = 8132767^2 + 52355^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×66144640122314² (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 3 ways as a sum of consecutive naturals, for example, 1272012310019 + ... + 1272012310070.

Almost surely, 2^{66144640122314} is an apocalyptic number.

66144640122314 is a deficient number, since it is larger than the sum of its proper divisors (40704393921466).

66144640122314 is a wasteful number, since it uses less digits than its factorization.

66144640122314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544024620104.

The product of its (nonzero) digits is 663552, while the sum is 44.

The spelling of 66144640122314 in words is "sixty-six trillion, one hundred forty-four billion, six hundred forty million, one hundred twenty-two thousand, three hundred fourteen".