11066515640 has 64 divisors (see below), whose sum is σ = 25077245760. Its totient is φ = 4395156480.

The previous prime is 11066515601. The next prime is 11066515651. The reversal of 11066515640 is 4651566011.

It is a self number, because there is not a number n which added to its sum of digits gives 11066515640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3466445 + ... + 3469635.

It is an arithmetic number, because the mean of its divisors is an integer number (391831965).

Almost surely, 2^11066515640 is an apocalyptic number.

11066515640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11066515640 is an abundant number, since it is smaller than the sum of its proper divisors (14010730120).

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

11066515640 is a wasteful number, since it uses less digits than its factorization.

11066515640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3792 (or 3788 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 11066515640 in words is "eleven billion, sixty-six million, five hundred fifteen thousand, six hundred forty".