65605245216156 has 18 divisors (see below), whose sum is σ = 165835480963152. Its totient is φ = 21868415072040.

The previous prime is 65605245216143. The next prime is 65605245216157. The reversal of 65605245216156 is 65161254250656.

65605245216156 is a `hidden beast` number, since 6 + 5 + 6 + 0 + 5 + 2 + 4 + 521 + 61 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65605245216157) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 911183961300 + ... + 911183961371.

Almost surely, 2^{65605245216156} is an apocalyptic number.

It is an amenable number.

65605245216156 is an abundant number, since it is smaller than the sum of its proper divisors (100230235746996).

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

65605245216156 is a wasteful number, since it uses less digits than its factorization.

65605245216156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1822367922681 (or 1822367922676 counting only the distinct ones).

The product of its (nonzero) digits is 12960000, while the sum is 54.

The spelling of 65605245216156 in words is "sixty-five trillion, six hundred five billion, two hundred forty-five million, two hundred sixteen thousand, one hundred fifty-six".