1553203114220 has 24 divisors (see below), whose sum is σ = 3265207610784. Its totient is φ = 620618184576.

The previous prime is 1553203114219. The next prime is 1553203114223. The reversal of 1553203114220 is 224113023551.

It is not an unprimeable number, because it can be changed into a prime (1553203114223) 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, 41422112 + ... + 41459591.

It is an arithmetic number, because the mean of its divisors is an integer number (136050317116).

Almost surely, 2^{1553203114220} is an apocalyptic number.

1553203114220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1553203114220 is an abundant number, since it is smaller than the sum of its proper divisors (1712004496564).

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

1553203114220 is a wasteful number, since it uses less digits than its factorization.

1553203114220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82882649 (or 82882647 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 1553203114220 its reverse (224113023551), we get a palindrome (1777316137771).

The spelling of 1553203114220 in words is "one trillion, five hundred fifty-three billion, two hundred three million, one hundred fourteen thousand, two hundred twenty".