215021050162 has 4 divisors (see below), whose sum is σ = 322531575246. Its totient is φ = 107510525080.

The previous prime is 215021050157. The next prime is 215021050183. The reversal of 215021050162 is 261050120512.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 120139185321 + 94881864841 = 346611^2 + 308029^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53755262539 + ... + 53755262542.

Almost surely, 2^215021050162 is an apocalyptic number.

215021050162 is a deficient number, since it is larger than the sum of its proper divisors (107510525084).

215021050162 is a wasteful number, since it uses less digits than its factorization.

215021050162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107510525083.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 215021050162 its reverse (261050120512), we get a palindrome (476071170674).

The spelling of 215021050162 in words is "two hundred fifteen billion, twenty-one million, fifty thousand, one hundred sixty-two".