66644214614 has 8 divisors (see below), whose sum is σ = 103413436560. Its totient is φ = 32173069096.

The previous prime is 66644214613. The next prime is 66644214619. The reversal of 66644214614 is 41641244666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66644214613) 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, 574519034 + ... + 574519149.

It is an arithmetic number, because the mean of its divisors is an integer number (12926679570).

Almost surely, 2^66644214614 is an apocalyptic number.

66644214614 is a deficient number, since it is larger than the sum of its proper divisors (36769221946).

66644214614 is a wasteful number, since it uses less digits than its factorization.

66644214614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149038214.

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

The spelling of 66644214614 in words is "sixty-six billion, six hundred forty-four million, two hundred fourteen thousand, six hundred fourteen".