3648631140220 has 96 divisors (see below), whose sum is σ = 8613828873216. Its totient is φ = 1286663078400.

The previous prime is 3648631140173. The next prime is 3648631140221. The reversal of 3648631140220 is 220411368463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3648631140221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 295249 + ... + 2717431.

It is an arithmetic number, because the mean of its divisors is an integer number (89727384096).

Almost surely, 2^{3648631140220} 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 3648631140220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4306914436608).

3648631140220 is an abundant number, since it is smaller than the sum of its proper divisors (4965197732996).

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

3648631140220 is a wasteful number, since it uses less digits than its factorization.

3648631140220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2422411 (or 2422409 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 3648631140220 in words is "three trillion, six hundred forty-eight billion, six hundred thirty-one million, one hundred forty thousand, two hundred twenty".