36646634046 has 48 divisors (see below), whose sum is σ = 81694010880. Its totient is φ = 10868719920.

The previous prime is 36646633987. The next prime is 36646634051. The reversal of 36646634046 is 64043664663.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 36646633986 and 36646634004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20115 + ... + 271473.

It is an arithmetic number, because the mean of its divisors is an integer number (1701958560).

Almost surely, 2^36646634046 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36646634046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40847005440).

36646634046 is an abundant number, since it is smaller than the sum of its proper divisors (45047376834).

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

36646634046 is a wasteful number, since it uses less digits than its factorization.

36646634046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251469 (or 251422 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 48.

The spelling of 36646634046 in words is "thirty-six billion, six hundred forty-six million, six hundred thirty-four thousand, forty-six".