1091692666775 has 12 divisors (see below), whose sum is σ = 1367654568672. Its totient is φ = 864350480640.

The previous prime is 1091692666759. The next prime is 1091692666789. The reversal of 1091692666775 is 5776662961901.

It is not a de Polignac number, because 1091692666775 - 2⁴ = 1091692666759 is a prime.

It is a super-2 number, since 2×1091692666775² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 225088847 + ... + 225093696.

It is an arithmetic number, because the mean of its divisors is an integer number (113971214056).

Almost surely, 2^{1091692666775} is an apocalyptic number.

1091692666775 is a deficient number, since it is larger than the sum of its proper divisors (275961901897).

1091692666775 is an equidigital number, since it uses as much as digits as its factorization.

1091692666775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450182650 (or 450182645 counting only the distinct ones).

The product of its (nonzero) digits is 51438240, while the sum is 65.

The spelling of 1091692666775 in words is "one trillion, ninety-one billion, six hundred ninety-two million, six hundred sixty-six thousand, seven hundred seventy-five".