636412830500161 has 8 divisors (see below), whose sum is σ = 747673814853504. Its totient is φ = 534052724895120.

The previous prime is 636412830500159. The next prime is 636412830500171. The reversal of 636412830500161 is 161005038214636.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 636412830500161 - 2¹ = 636412830500159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (636412830500171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2225219686921 + ... + 2225219687206.

It is an arithmetic number, because the mean of its divisors is an integer number (93459226856688).

Almost surely, 2^{636412830500161} is an apocalyptic number.

It is an amenable number.

636412830500161 is a deficient number, since it is larger than the sum of its proper divisors (111260984353343).

636412830500161 is a wasteful number, since it uses less digits than its factorization.

636412830500161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4450439374151.

The product of its (nonzero) digits is 622080, while the sum is 46.

Adding to 636412830500161 its reverse (161005038214636), we get a palindrome (797417868714797).

The spelling of 636412830500161 in words is "six hundred thirty-six trillion, four hundred twelve billion, eight hundred thirty million, five hundred thousand, one hundred sixty-one".