11604605820 has 48 divisors (see below), whose sum is σ = 32796586368. Its totient is φ = 3065638720.

The previous prime is 11604605801. The next prime is 11604605849. The reversal of 11604605820 is 2850640611.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 897366 + ... + 910205.

It is an arithmetic number, because the mean of its divisors is an integer number (683262216).

Almost surely, 2^11604605820 is an apocalyptic number.

11604605820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11604605820 is an abundant number, since it is smaller than the sum of its proper divisors (21191980548).

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

11604605820 is a wasteful number, since it uses less digits than its factorization.

11604605820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807690 (or 1807688 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 11604605820 in words is "eleven billion, six hundred four million, six hundred five thousand, eight hundred twenty".