266604006444 has 24 divisors (see below), whose sum is σ = 627783137520. Its totient is φ = 88052698944.

The previous prime is 266604006401. The next prime is 266604006491. The reversal of 266604006444 is 444600406662.

It is a junction number, because it is equal to n+sod(n) for n = 266604006396 and 266604006405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101911539 + ... + 101914154.

It is an arithmetic number, because the mean of its divisors is an integer number (26157630730).

Almost surely, 2^266604006444 is an apocalyptic number.

It is an amenable number.

266604006444 is an abundant number, since it is smaller than the sum of its proper divisors (361179131076).

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

266604006444 is a wasteful number, since it uses less digits than its factorization.

266604006444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203825809 (or 203825807 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 42.

The spelling of 266604006444 in words is "two hundred sixty-six billion, six hundred four million, six thousand, four hundred forty-four".