36225631640 has 128 divisors (see below), whose sum is σ = 91750579200. Its totient is φ = 12759060480.

The previous prime is 36225631639. The next prime is 36225631661. The reversal of 36225631640 is 4613652263.

It is a happy number.

36225631640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 36225631594 and 36225631603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1996931 + ... + 2014989.

It is an arithmetic number, because the mean of its divisors is an integer number (716801400).

Almost surely, 2^36225631640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36225631640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45875289600).

36225631640 is an abundant number, since it is smaller than the sum of its proper divisors (55524947560).

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

36225631640 is a wasteful number, since it uses less digits than its factorization.

36225631640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18225 (or 18221 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 36225631640 in words is "thirty-six billion, two hundred twenty-five million, six hundred thirty-one thousand, six hundred forty".