315342055220 has 144 divisors (see below), whose sum is σ = 736841968128. Its totient is φ = 113123450880.

The previous prime is 315342055219. The next prime is 315342055283. The reversal of 315342055220 is 22550243513.

It is a super-2 number, since 2×315342055220² (a number of 24 digits) contains 22 as substring.

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, 36022364 + ... + 36031116.

It is an arithmetic number, because the mean of its divisors is an integer number (5116958112).

Almost surely, 2^315342055220 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 315342055220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (368420984064).

315342055220 is an abundant number, since it is smaller than the sum of its proper divisors (421499912908).

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

315342055220 is a wasteful number, since it uses less digits than its factorization.

315342055220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9090 (or 9071 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 315342055220 its reverse (22550243513), we get a palindrome (337892298733).

The spelling of 315342055220 in words is "three hundred fifteen billion, three hundred forty-two million, fifty-five thousand, two hundred twenty".