11656305045 has 96 divisors (see below), whose sum is σ = 25232014080. Its totient is φ = 4836049920.

The previous prime is 11656305029. The next prime is 11656305047. The reversal of 11656305045 is 54050365611.

11656305045 is a `hidden beast` number, since 1 + 1 + 6 + 563 + 0 + 50 + 45 = 666.

11656305045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11656305045 - 2⁴ = 11656305029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11656305047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2343321 + ... + 2348289.

It is an arithmetic number, because the mean of its divisors is an integer number (262833480).

Almost surely, 2^11656305045 is an apocalyptic number.

11656305045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11656305045 is an abundant number, since it is smaller than the sum of its proper divisors (13575709035).

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

11656305045 is a wasteful number, since it uses less digits than its factorization.

11656305045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5675 (or 5672 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 11656305045 in words is "eleven billion, six hundred fifty-six million, three hundred five thousand, forty-five".