11001225664 has 56 divisors (see below), whose sum is σ = 25647109488. Its totient is φ = 4615895040.

The previous prime is 11001225647. The next prime is 11001225671. The reversal of 11001225664 is 46652210011.

It is a super-2 number, since 2×11001225664² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591877 + ... + 610180.

It is an arithmetic number, because the mean of its divisors is an integer number (457984098).

Almost surely, 2^11001225664 is an apocalyptic number.

It is an amenable number.

11001225664 is an abundant number, since it is smaller than the sum of its proper divisors (14645883824).

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

11001225664 is a wasteful number, since it uses less digits than its factorization.

11001225664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202093 (or 1202083 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 11001225664 its reverse (46652210011), we get a palindrome (57653435675).

The spelling of 11001225664 in words is "eleven billion, one million, two hundred twenty-five thousand, six hundred sixty-four".