3620543135220 has 144 divisors (see below), whose sum is σ = 11984918557248. Its totient is φ = 877398842880.

The previous prime is 3620543135213. The next prime is 3620543135269. The reversal of 3620543135220 is 225313450263.

3620543135220 is a `hidden beast` number, since 3 + 62 + 0 + 543 + 1 + 3 + 52 + 2 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5336847 + ... + 5976873.

It is an arithmetic number, because the mean of its divisors is an integer number (83228601092).

Almost surely, 2^{3620543135220} is an apocalyptic number.

3620543135220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3620543135220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5992459278624).

3620543135220 is an abundant number, since it is smaller than the sum of its proper divisors (8364375422028).

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

3620543135220 is a wasteful number, since it uses less digits than its factorization.

3620543135220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642910 (or 642905 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Adding to 3620543135220 its reverse (225313450263), we get a palindrome (3845856585483).

The spelling of 3620543135220 in words is "three trillion, six hundred twenty billion, five hundred forty-three million, one hundred thirty-five thousand, two hundred twenty".