636964560141 has 32 divisors (see below), whose sum is σ = 1049761440000. Its totient is φ = 334539293184.

The previous prime is 636964560131. The next prime is 636964560157. The reversal of 636964560141 is 141065469636.

It is a happy number.

It is not a de Polignac number, because 636964560141 - 2¹⁸ = 636964297997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (636964560131) 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 31 ways as a sum of consecutive naturals, for example, 4943266 + ... + 5070483.

It is an arithmetic number, because the mean of its divisors is an integer number (32805045000).

Almost surely, 2^636964560141 is an apocalyptic number.

It is an amenable number.

636964560141 is a deficient number, since it is larger than the sum of its proper divisors (412796879859).

636964560141 is a wasteful number, since it uses less digits than its factorization.

636964560141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10014005.

The product of its (nonzero) digits is 2799360, while the sum is 51.

The spelling of 636964560141 in words is "six hundred thirty-six billion, nine hundred sixty-four million, five hundred sixty thousand, one hundred forty-one".