11001533668 has 12 divisors (see below), whose sum is σ = 19327598892. Its totient is φ = 5479362560.

The previous prime is 11001533659. The next prime is 11001533747. The reversal of 11001533668 is 86633510011.

It can be written as a sum of positive squares in 2 ways, for example, as 8687731264 + 2313802404 = 93208^2 + 48102^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5349913 + ... + 5351968.

It is an arithmetic number, because the mean of its divisors is an integer number (1610633241).

Almost surely, 2^11001533668 is an apocalyptic number.

It is an amenable number.

11001533668 is a deficient number, since it is larger than the sum of its proper divisors (8326065224).

11001533668 is a wasteful number, since it uses less digits than its factorization.

11001533668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10702142 (or 10702140 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The spelling of 11001533668 in words is "eleven billion, one million, five hundred thirty-three thousand, six hundred sixty-eight".