1085240312666 has 8 divisors (see below), whose sum is σ = 1629056549844. Its totient is φ = 542221462720.

The previous prime is 1085240312647. The next prime is 1085240312707. The reversal of 1085240312666 is 6662130425801.

It can be written as a sum of positive squares in 2 ways, for example, as 1084441063225 + 799249441 = 1041365^2 + 28271^2 .

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

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, 199343405 + ... + 199348848.

Almost surely, 2^{1085240312666} is an apocalyptic number.

1085240312666 is a deficient number, since it is larger than the sum of its proper divisors (543816237178).

1085240312666 is a wasteful number, since it uses less digits than its factorization.

1085240312666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398693616.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 1085240312666 in words is "one trillion, eighty-five billion, two hundred forty million, three hundred twelve thousand, six hundred sixty-six".