636602224131345 has 32 divisors (see below), whose sum is σ = 1078480921655808. Its totient is φ = 319548800729088.

The previous prime is 636602224131323. The next prime is 636602224131347. The reversal of 636602224131345 is 543131422206636.

It is not a de Polignac number, because 636602224131345 - 2¹⁶ = 636602224065809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 636602224131294 and 636602224131303.

It is not an unprimeable number, because it can be changed into a prime (636602224131347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 174351432 + ... + 177965238.

It is an arithmetic number, because the mean of its divisors is an integer number (33702528801744).

Almost surely, 2^{636602224131345} is an apocalyptic number.

It is an amenable number.

636602224131345 is a deficient number, since it is larger than the sum of its proper divisors (441878697524463).

636602224131345 is a wasteful number, since it uses less digits than its factorization.

636602224131345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4304649.

The product of its (nonzero) digits is 3732480, while the sum is 48.

The spelling of 636602224131345 in words is "six hundred thirty-six trillion, six hundred two billion, two hundred twenty-four million, one hundred thirty-one thousand, three hundred forty-five".