11601604545 has 16 divisors (see below), whose sum is σ = 18563917632. Its totient is φ = 6187072320.

The previous prime is 11601604537. The next prime is 11601604589. The reversal of 11601604545 is 54540610611.

11601604545 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 11601604545 - 2³ = 11601604537 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 342210 + ... + 374580.

It is an arithmetic number, because the mean of its divisors is an integer number (1160244852).

Almost surely, 2^11601604545 is an apocalyptic number.

11601604545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11601604545 is a deficient number, since it is larger than the sum of its proper divisors (6962313087).

11601604545 is a wasteful number, since it uses less digits than its factorization.

11601604545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56272.

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 11601604545 in words is "eleven billion, six hundred one million, six hundred four thousand, five hundred forty-five".