11666160036 has 72 divisors (see below), whose sum is σ = 31313167704. Its totient is φ = 3649536000.

The previous prime is 11666160029. The next prime is 11666160047. The reversal of 11666160036 is 63006166611.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1322049600 + 10344110436 = 36360^2 + 101706^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 189036 + ... + 243036.

It is an arithmetic number, because the mean of its divisors is an integer number (434905107).

Almost surely, 2^11666160036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11666160036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15656583852).

11666160036 is an abundant number, since it is smaller than the sum of its proper divisors (19647007668).

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

11666160036 is a wasteful number, since it uses less digits than its factorization.

11666160036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54381 (or 54376 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The spelling of 11666160036 in words is "eleven billion, six hundred sixty-six million, one hundred sixty thousand, thirty-six".