266646486088 has 16 divisors (see below), whose sum is σ = 499973441580. Its totient is φ = 133320235008.

The previous prime is 266646486061. The next prime is 266646486107. The reversal of 266646486088 is 880684646662.

It can be written as a sum of positive squares in 2 ways, for example, as 266402564164 + 243921924 = 516142^2 + 15618^2 .

It is a super-2 number, since 2×266646486088² (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, 26020 + ... + 730732.

Almost surely, 2^266646486088 is an apocalyptic number.

It is an amenable number.

266646486088 is a deficient number, since it is larger than the sum of its proper divisors (233326955492).

266646486088 is a wasteful number, since it uses less digits than its factorization.

266646486088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752016 (or 752012 counting only the distinct ones).

The product of its (nonzero) digits is 127401984, while the sum is 64.

The spelling of 266646486088 in words is "two hundred sixty-six billion, six hundred forty-six million, four hundred eighty-six thousand, eighty-eight".