12081035664 has 60 divisors (see below), whose sum is σ = 34529504256. Its totient is φ = 3941328576.

The previous prime is 12081035651. The next prime is 12081035689. The reversal of 12081035664 is 46653018021.

It is a happy number.

12081035664 is a `hidden beast` number, since 12 + 0 + 81 + 0 + 3 + 566 + 4 = 666.

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 11 ways as a sum of consecutive naturals, for example, 885744 + ... + 899279.

Almost surely, 2^12081035664 is an apocalyptic number.

It is an amenable number.

12081035664 is an abundant number, since it is smaller than the sum of its proper divisors (22448468592).

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

12081035664 is a wasteful number, since it uses less digits than its factorization.

12081035664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785084 (or 1785075 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 12081035664 in words is "twelve billion, eighty-one million, thirty-five thousand, six hundred sixty-four".