11605655728 has 20 divisors (see below), whose sum is σ = 22497555600. Its totient is φ = 5799834944.

The previous prime is 11605655689. The next prime is 11605655759. The reversal of 11605655728 is 82755650611.

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, 154900 + ... + 217267.

It is an arithmetic number, because the mean of its divisors is an integer number (1124877780).

Almost surely, 2^11605655728 is an apocalyptic number.

It is an amenable number.

11605655728 is a deficient number, since it is larger than the sum of its proper divisors (10891899872).

11605655728 is a wasteful number, since it uses less digits than its factorization.

11605655728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374124 (or 374118 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 46.

The spelling of 11605655728 in words is "eleven billion, six hundred five million, six hundred fifty-five thousand, seven hundred twenty-eight".