11655560648 has 32 divisors (see below), whose sum is σ = 21936096000. Its totient is φ = 5805979200.

The previous prime is 11655560639. The next prime is 11655560671. The reversal of 11655560648 is 84606555611.

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, 2684063 + ... + 2688401.

It is an arithmetic number, because the mean of its divisors is an integer number (685503000).

Almost surely, 2^11655560648 is an apocalyptic number.

It is an amenable number.

11655560648 is a deficient number, since it is larger than the sum of its proper divisors (10280535352).

11655560648 is a wasteful number, since it uses less digits than its factorization.

11655560648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5525 (or 5521 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 47.

The spelling of 11655560648 in words is "eleven billion, six hundred fifty-five million, five hundred sixty thousand, six hundred forty-eight".