215233564170242 has 16 divisors (see below), whose sum is σ = 323292562225920. Its totient is φ = 107469477624912.

The previous prime is 215233564170241. The next prime is 215233564170253. The reversal of 215233564170242 is 242071465332512.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (215233564170241) 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, 20946293 + ... + 29482440.

It is an arithmetic number, because the mean of its divisors is an integer number (20205785139120).

Almost surely, 2^{215233564170242} is an apocalyptic number.

215233564170242 is a deficient number, since it is larger than the sum of its proper divisors (108058998055678).

215233564170242 is a wasteful number, since it uses less digits than its factorization.

215233564170242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50431657.

The product of its (nonzero) digits is 2419200, while the sum is 47.

The spelling of 215233564170242 in words is "two hundred fifteen trillion, two hundred thirty-three billion, five hundred sixty-four million, one hundred seventy thousand, two hundred forty-two".