66422365144 has 16 divisors (see below), whose sum is σ = 124547856120. Its totient is φ = 33209603520.

The previous prime is 66422365103. The next prime is 66422365151. The reversal of 66422365144 is 44156322466.

It is a super-2 number, since 2×66422365144² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66422365144.

It is a congruent number.

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, 7909 + ... + 364564.

Almost surely, 2^66422365144 is an apocalyptic number.

It is an amenable number.

66422365144 is a deficient number, since it is larger than the sum of its proper divisors (58125490976).

66422365144 is a wasteful number, since it uses less digits than its factorization.

66422365144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394770 (or 394766 counting only the distinct ones).

The product of its digits is 829440, while the sum is 43.

The spelling of 66422365144 in words is "sixty-six billion, four hundred twenty-two million, three hundred sixty-five thousand, one hundred forty-four".