10665661005006 has 64 divisors (see below), whose sum is σ = 25477914451968. Its totient is φ = 2910333701088.

The previous prime is 10665661004953. The next prime is 10665661005007. The reversal of 10665661005006 is 60050016656601.

It is a super-2 number, since 2×10665661005006² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10665661005007) 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, 7907500 + ... + 9157503.

It is an arithmetic number, because the mean of its divisors is an integer number (398092413312).

Almost surely, 2^{10665661005006} is an apocalyptic number.

10665661005006 is an abundant number, since it is smaller than the sum of its proper divisors (14812253446962).

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

10665661005006 is a wasteful number, since it uses less digits than its factorization.

10665661005006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17065685.

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 10665661005006 in words is "ten trillion, six hundred sixty-five billion, six hundred sixty-one million, five thousand, six".