3550218552220 has 24 divisors (see below), whose sum is σ = 7532319365424. Its totient is φ = 1405447343616.

The previous prime is 3550218552197. The next prime is 3550218552229. The reversal of 3550218552220 is 222558120553.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3550218552229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 915002842 + ... + 915006721.

It is an arithmetic number, because the mean of its divisors is an integer number (313846640226).

Almost surely, 2^{3550218552220} is an apocalyptic number.

It is an amenable number.

3550218552220 is an abundant number, since it is smaller than the sum of its proper divisors (3982100813204).

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

3550218552220 is a wasteful number, since it uses less digits than its factorization.

3550218552220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830009669 (or 1830009667 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 40.

The spelling of 3550218552220 in words is "three trillion, five hundred fifty billion, two hundred eighteen million, five hundred fifty-two thousand, two hundred twenty".