636145601069 has 8 divisors (see below), whose sum is σ = 696446691840. Its totient is φ = 576256122400.

The previous prime is 636145601053. The next prime is 636145601089. The reversal of 636145601069 is 960106541636.

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 636145601069 - 2⁴ = 636145601053 is a prime.

It is a super-2 number, since 2×636145601069² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (636145601089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102899789 + ... + 102905970.

It is an arithmetic number, because the mean of its divisors is an integer number (87055836480).

Almost surely, 2^636145601069 is an apocalyptic number.

It is an amenable number.

636145601069 is a deficient number, since it is larger than the sum of its proper divisors (60301090771).

636145601069 is a wasteful number, since it uses less digits than its factorization.

636145601069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205806051.

The product of its (nonzero) digits is 699840, while the sum is 47.

The spelling of 636145601069 in words is "six hundred thirty-six billion, one hundred forty-five million, six hundred one thousand, sixty-nine".