636042413340 has 96 divisors (see below), whose sum is σ = 1997292245760. Its totient is φ = 168026142528.

The previous prime is 636042413317. The next prime is 636042413351. The reversal of 636042413340 is 43314240636.

636042413340 is a `hidden beast` number, since 6 + 3 + 60 + 424 + 133 + 40 = 666.

636042413340 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 636042413295 and 636042413304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5446222 + ... + 5561781.

It is an arithmetic number, because the mean of its divisors is an integer number (20805127560).

Almost surely, 2^636042413340 is an apocalyptic number.

636042413340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

636042413340 is an abundant number, since it is smaller than the sum of its proper divisors (1361249832420).

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

636042413340 is a wasteful number, since it uses less digits than its factorization.

636042413340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11008128 (or 11008120 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 36.

Adding to 636042413340 its reverse (43314240636), we get a palindrome (679356653976).

The spelling of 636042413340 in words is "six hundred thirty-six billion, forty-two million, four hundred thirteen thousand, three hundred forty".