163636256311253 has 16 divisors (see below), whose sum is σ = 183309212667840. Its totient is φ = 144813071116800.

The previous prime is 163636256311247. The next prime is 163636256311279. The reversal of 163636256311253 is 352113652636361.

163636256311253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 163636256311253 - 2³⁰ = 163635182569429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163636256311195 and 163636256311204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163636256311223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1256992823 + ... + 1257122996.

It is an arithmetic number, because the mean of its divisors is an integer number (11456825791740).

Almost surely, 2^{163636256311253} is an apocalyptic number.

It is an amenable number.

163636256311253 is a deficient number, since it is larger than the sum of its proper divisors (19672956356587).

163636256311253 is a wasteful number, since it uses less digits than its factorization.

163636256311253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2514115988.

The product of its digits is 10497600, while the sum is 53.

The spelling of 163636256311253 in words is "one hundred sixty-three trillion, six hundred thirty-six billion, two hundred fifty-six million, three hundred eleven thousand, two hundred fifty-three".