66614544162112 has 28 divisors (see below), whose sum is σ = 132197991222996. Its totient is φ = 33304814090240.

The previous prime is 66614544162097. The next prime is 66614544162119. The reversal of 66614544162112 is 21126144541666.

It can be written as a sum of positive squares in 2 ways, for example, as 59881224983616 + 6733319178496 = 7738296^2 + 2594864^2 .

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37531939 + ... + 39266722.

Almost surely, 2^{66614544162112} is an apocalyptic number.

It is an amenable number.

66614544162112 is a deficient number, since it is larger than the sum of its proper divisors (65583447060884).

66614544162112 is a wasteful number, since it uses less digits than its factorization.

66614544162112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76812226 (or 76812216 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 49.

The spelling of 66614544162112 in words is "sixty-six trillion, six hundred fourteen billion, five hundred forty-four million, one hundred sixty-two thousand, one hundred twelve".