4644612322020 has 288 divisors, whose sum is σ = 15426793025280. Its totient is φ = 1121771520000.

The previous prime is 4644612322001. The next prime is 4644612322037. The reversal of 4644612322020 is 202232164464.

4644612322020 is a `hidden beast` number, since 4 + 6 + 4 + 4 + 612 + 32 + 2 + 0 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 967423620 + ... + 967428420.

It is an arithmetic number, because the mean of its divisors is an integer number (53565253560).

Almost surely, 2^{4644612322020} 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 4644612322020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7713396512640).

4644612322020 is an abundant number, since it is smaller than the sum of its proper divisors (10782180703260).

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

4644612322020 is a wasteful number, since it uses less digits than its factorization.

4644612322020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6547 (or 6542 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 4644612322020 its reverse (202232164464), we get a palindrome (4846844486484).

The spelling of 4644612322020 in words is "four trillion, six hundred forty-four billion, six hundred twelve million, three hundred twenty-two thousand, twenty".