11604134565 has 48 divisors (see below), whose sum is σ = 20447945856. Its totient is φ = 6086505600.

The previous prime is 11604134557. The next prime is 11604134609. The reversal of 11604134565 is 56543140611.

11604134565 is a `hidden beast` number, since 1 + 1 + 60 + 4 + 1 + 34 + 565 = 666.

It is not a de Polignac number, because 11604134565 - 2³ = 11604134557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1340782 + ... + 1349408.

It is an arithmetic number, because the mean of its divisors is an integer number (425998872).

Almost surely, 2^11604134565 is an apocalyptic number.

11604134565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11604134565 is a deficient number, since it is larger than the sum of its proper divisors (8843811291).

11604134565 is a wasteful number, since it uses less digits than its factorization.

11604134565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9130 (or 9127 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 11604134565 in words is "eleven billion, six hundred four million, one hundred thirty-four thousand, five hundred sixty-five".