266342684290 has 8 divisors (see below), whose sum is σ = 479416831740. Its totient is φ = 106537073712.

The previous prime is 266342684273. The next prime is 266342684317. The reversal of 266342684290 is 92486243662.

It can be written as a sum of positive squares in 2 ways, for example, as 241441528689 + 24901155601 = 491367^2 + 157801^2 .

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

It is a super-2 number, since 2×266342684290² (a number of 24 digits) contains 22 as substring.

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, 13317134205 + ... + 13317134224.

Almost surely, 2^266342684290 is an apocalyptic number.

266342684290 is a deficient number, since it is larger than the sum of its proper divisors (213074147450).

266342684290 is a wasteful number, since it uses less digits than its factorization.

266342684290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26634268436.

The product of its (nonzero) digits is 5971968, while the sum is 52.

The spelling of 266342684290 in words is "two hundred sixty-six billion, three hundred forty-two million, six hundred eighty-four thousand, two hundred ninety".