11660892005 has 32 divisors (see below), whose sum is σ = 16376236800. Its totient is φ = 7804242432.

The previous prime is 11660891981. The next prime is 11660892007. The reversal of 11660892005 is 50029806611.

It is not a de Polignac number, because 11660892005 - 2³⁰ = 10587150181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11660892005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11660892007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3142091 + ... + 3145799.

It is an arithmetic number, because the mean of its divisors is an integer number (511757400).

Almost surely, 2^11660892005 is an apocalyptic number.

It is an amenable number.

11660892005 is a deficient number, since it is larger than the sum of its proper divisors (4715344795).

11660892005 is a wasteful number, since it uses less digits than its factorization.

11660892005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5853.

The product of its (nonzero) digits is 25920, while the sum is 38.

The spelling of 11660892005 in words is "eleven billion, six hundred sixty million, eight hundred ninety-two thousand, five".