10661008845775 has 24 divisors (see below), whose sum is σ = 13915629419600. Its totient is φ = 8079802099200.

The previous prime is 10661008845757. The next prime is 10661008845787. The reversal of 10661008845775 is 57754880016601.

It is a de Polignac number, because none of the positive numbers 2^k-10661008845775 is a prime.

It is a super-2 number, since 2×10661008845775² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 44026231 + ... + 44267719.

Almost surely, 2^{10661008845775} is an apocalyptic number.

10661008845775 is a deficient number, since it is larger than the sum of its proper divisors (3254620573825).

10661008845775 is a wasteful number, since it uses less digits than its factorization.

10661008845775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334459 (or 334454 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 58.

The spelling of 10661008845775 in words is "ten trillion, six hundred sixty-one billion, eight million, eight hundred forty-five thousand, seven hundred seventy-five".