66704404340044 has 12 divisors (see below), whose sum is σ = 116733565660824. Its totient is φ = 33351957008384.

The previous prime is 66704404339999. The next prime is 66704404340069. The reversal of 66704404340044 is 44004340440766.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 66704404339976 and 66704404340003.

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, 60677542 + ... + 61767085.

It is an arithmetic number, because the mean of its divisors is an integer number (9727797138402).

Almost surely, 2^{66704404340044} is an apocalyptic number.

It is an amenable number.

66704404340044 is a deficient number, since it is larger than the sum of its proper divisors (50029161320780).

66704404340044 is a wasteful number, since it uses less digits than its factorization.

66704404340044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122580824 (or 122580822 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 46.

The spelling of 66704404340044 in words is "sixty-six trillion, seven hundred four billion, four hundred four million, three hundred forty thousand, forty-four".