3646372232020 has 96 divisors (see below), whose sum is σ = 8782114134528. Its totient is φ = 1245784430592.

The previous prime is 3646372232003. The next prime is 3646372232021. The reversal of 3646372232020 is 202322736463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3646372232021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154541344 + ... + 154564936.

It is an arithmetic number, because the mean of its divisors is an integer number (91480355568).

Almost surely, 2^{3646372232020} 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 3646372232020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4391057067264).

3646372232020 is an abundant number, since it is smaller than the sum of its proper divisors (5135741902508).

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

3646372232020 is a wasteful number, since it uses less digits than its factorization.

3646372232020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27449 (or 27447 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 40.

Adding to 3646372232020 its reverse (202322736463), we get a palindrome (3848694968483).

The spelling of 3646372232020 in words is "three trillion, six hundred forty-six billion, three hundred seventy-two million, two hundred thirty-two thousand, twenty".