3661266010266 has 48 divisors (see below), whose sum is σ = 7991343930024. Its totient is φ = 1211408036352.

The previous prime is 3661266010253. The next prime is 3661266010277. The reversal of 3661266010266 is 6620106621663.

3661266010266 is a `hidden beast` number, since 3 + 6 + 6 + 12 + 6 + 601 + 0 + 26 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3372074815041 + 289191195225 = 1836321^2 + 537765^2 .

It is a super-2 number, since 2×3661266010266² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31252336 + ... + 31369268.

Almost surely, 2^{3661266010266} is an apocalyptic number.

3661266010266 is an abundant number, since it is smaller than the sum of its proper divisors (4330077919758).

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

3661266010266 is a wasteful number, since it uses less digits than its factorization.

3661266010266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129775 (or 129772 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The spelling of 3661266010266 in words is "three trillion, six hundred sixty-one billion, two hundred sixty-six million, ten thousand, two hundred sixty-six".