315633512020 has 48 divisors (see below), whose sum is σ = 690070097808. Its totient is φ = 121158374400.

The previous prime is 315633512017. The next prime is 315633512021. The reversal of 315633512020 is 20215336513.

It can be written as a sum of positive squares in 8 ways, for example, as 46484222404 + 269149289616 = 215602^2 + 518796^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315633512021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2867431 + ... + 2975470.

It is an arithmetic number, because the mean of its divisors is an integer number (14376460371).

Almost surely, 2^315633512020 is an apocalyptic number.

It is an amenable number.

315633512020 is an abundant number, since it is smaller than the sum of its proper divisors (374436585788).

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

315633512020 is a wasteful number, since it uses less digits than its factorization.

315633512020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5843020 (or 5843018 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 31.

Adding to 315633512020 its reverse (20215336513), we get a palindrome (335848848533).

The spelling of 315633512020 in words is "three hundred fifteen billion, six hundred thirty-three million, five hundred twelve thousand, twenty".