36644201646 has 16 divisors (see below), whose sum is σ = 78925972944. Its totient is φ = 11275138944.

The previous prime is 36644201623. The next prime is 36644201653. The reversal of 36644201646 is 64610244663.

It is a junction number, because it is equal to n+sod(n) for n = 36644201598 and 36644201607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234898651 + ... + 234898806.

It is an arithmetic number, because the mean of its divisors is an integer number (4932873309).

Almost surely, 2^36644201646 is an apocalyptic number.

36644201646 is an abundant number, since it is smaller than the sum of its proper divisors (42281771298).

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

36644201646 is a wasteful number, since it uses less digits than its factorization.

36644201646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469797475.

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 36644201646 in words is "thirty-six billion, six hundred forty-four million, two hundred one thousand, six hundred forty-six".