215452562130 has 96 divisors (see below), whose sum is σ = 604885737456. Its totient is φ = 52892186112.

The previous prime is 215452562113. The next prime is 215452562131. The reversal of 215452562130 is 31265254512.

215452562130 is a `hidden beast` number, since 2 + 1 + 5 + 4 + 5 + 25 + 621 + 3 + 0 = 666.

215452562130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 16508909169 + 198943652961 = 128487^2 + 446031^2 .

It is not an unprimeable number, because it can be changed into a prime (215452562131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 189564 + ... + 683256.

Almost surely, 2^215452562130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215452562130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302442868728).

215452562130 is an abundant number, since it is smaller than the sum of its proper divisors (389433175326).

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

215452562130 is a wasteful number, since it uses less digits than its factorization.

215452562130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494092 (or 494089 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 215452562130 in words is "two hundred fifteen billion, four hundred fifty-two million, five hundred sixty-two thousand, one hundred thirty".