1165550655588 has 48 divisors (see below), whose sum is σ = 2968342542144. Its totient is φ = 353020224640.

The previous prime is 1165550655587. The next prime is 1165550655667. The reversal of 1165550655588 is 8855560555611.

It is not an unprimeable number, because it can be changed into a prime (1165550655587) 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, 1947195 + ... + 2474402.

It is an arithmetic number, because the mean of its divisors is an integer number (61840469628).

Almost surely, 2^{1165550655588} is an apocalyptic number.

It is an amenable number.

1165550655588 is an abundant number, since it is smaller than the sum of its proper divisors (1802791886556).

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

1165550655588 is a wasteful number, since it uses less digits than its factorization.

1165550655588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4423612 (or 4423610 counting only the distinct ones).

The product of its (nonzero) digits is 36000000, while the sum is 60.

The spelling of 1165550655588 in words is "one trillion, one hundred sixty-five billion, five hundred fifty million, six hundred fifty-five thousand, five hundred eighty-eight".