215343320202 has 64 divisors (see below), whose sum is σ = 511245542400. Its totient is φ = 66988159920.

The previous prime is 215343320201. The next prime is 215343320207. The reversal of 215343320202 is 202023343512.

215343320202 is a `hidden beast` number, since 2 + 1 + 5 + 3 + 433 + 20 + 202 = 666.

It is a super-2 number, since 2×215343320202² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (215343320201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1497574 + ... + 1635057.

It is an arithmetic number, because the mean of its divisors is an integer number (7988211600).

Almost surely, 2^215343320202 is an apocalyptic number.

215343320202 is an abundant number, since it is smaller than the sum of its proper divisors (295902222198).

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

215343320202 is a wasteful number, since it uses less digits than its factorization.

215343320202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3132728 (or 3132722 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 215343320202 its reverse (202023343512), we get a palindrome (417366663714).

The spelling of 215343320202 in words is "two hundred fifteen billion, three hundred forty-three million, three hundred twenty thousand, two hundred two".