3644061075020 has 96 divisors (see below), whose sum is σ = 7914989779200. Its totient is φ = 1408553662464.

The previous prime is 3644061075019. The next prime is 3644061075041. The reversal of 3644061075020 is 205701604463.

It is a happy number.

3644061075020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3644061075020² (a number of 26 digits) contains 22 as substring.

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, 34196462 + ... + 34302858.

It is an arithmetic number, because the mean of its divisors is an integer number (82447810200).

Almost surely, 2^{3644061075020} is an apocalyptic number.

It is an amenable number.

3644061075020 is an abundant number, since it is smaller than the sum of its proper divisors (4270928704180).

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

3644061075020 is a wasteful number, since it uses less digits than its factorization.

3644061075020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106947 (or 106945 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

Adding to 3644061075020 its reverse (205701604463), we get a palindrome (3849762679483).

The spelling of 3644061075020 in words is "three trillion, six hundred forty-four billion, sixty-one million, seventy-five thousand, twenty".