636541145636 has 48 divisors (see below), whose sum is σ = 1249448820480. Its totient is φ = 281238048000.

The previous prime is 636541145627. The next prime is 636541145641.

636541145636 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162131 + ... + 1139898.

It is an arithmetic number, because the mean of its divisors is an integer number (26030183760).

Almost surely, 2^636541145636 is an apocalyptic number.

It is an amenable number.

636541145636 is a deficient number, since it is larger than the sum of its proper divisors (612907674844).

636541145636 is a wasteful number, since it uses less digits than its factorization.

636541145636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302356 (or 1302354 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 50.

The spelling of 636541145636 in words is "six hundred thirty-six billion, five hundred forty-one million, one hundred forty-five thousand, six hundred thirty-six".