11605616625 has 32 divisors (see below), whose sum is σ = 19434849408. Its totient is φ = 6150206400.

The previous prime is 11605616573. The next prime is 11605616629. The reversal of 11605616625 is 52661650611.

It is not a de Polignac number, because 11605616625 - 2¹⁴ = 11605600241 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11605616629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39687 + ... + 157436.

It is an arithmetic number, because the mean of its divisors is an integer number (607339044).

Almost surely, 2^11605616625 is an apocalyptic number.

11605616625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11605616625 is a deficient number, since it is larger than the sum of its proper divisors (7829232783).

11605616625 is a wasteful number, since it uses less digits than its factorization.

11605616625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197298 (or 197288 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 11605616625 in words is "eleven billion, six hundred five million, six hundred sixteen thousand, six hundred twenty-five".