4379442885666 has 32 divisors (see below), whose sum is σ = 9733494225600. Its totient is φ = 1459604456640.

The previous prime is 4379442885577. The next prime is 4379442885733. The reversal of 4379442885666 is 6665882449734.

It is a super-2 number, since 2×4379442885666² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4379442885594 and 4379442885603.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5449476 + ... + 6201263.

It is an arithmetic number, because the mean of its divisors is an integer number (304171694550).

Almost surely, 2^{4379442885666} is an apocalyptic number.

4379442885666 is an abundant number, since it is smaller than the sum of its proper divisors (5354051339934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4379442885666 is a wasteful number, since it uses less digits than its factorization.

4379442885666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11657711 (or 11657705 counting only the distinct ones).

The product of its digits is 1672151040, while the sum is 72.

The spelling of 4379442885666 in words is "four trillion, three hundred seventy-nine billion, four hundred forty-two million, eight hundred eighty-five thousand, six hundred sixty-six".