11061644640 has 96 divisors (see below), whose sum is σ = 34858706400. Its totient is φ = 2948542464.

The previous prime is 11061644639. The next prime is 11061644647. The reversal of 11061644640 is 4644616011.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11061644647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2229042 + ... + 2233998.

It is an arithmetic number, because the mean of its divisors is an integer number (363111525).

Almost surely, 2^11061644640 is an apocalyptic number.

11061644640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11061644640 is an abundant number, since it is smaller than the sum of its proper divisors (23797061760).

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

11061644640 is a wasteful number, since it uses less digits than its factorization.

11061644640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9624 (or 9616 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The spelling of 11061644640 in words is "eleven billion, sixty-one million, six hundred forty-four thousand, six hundred forty".