210652133642 has 4 divisors (see below), whose sum is σ = 315978200466. Its totient is φ = 105326066820.

The previous prime is 210652133623. The next prime is 210652133719. The reversal of 210652133642 is 246331256012.

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., 210560759161 + 91374481 = 458869^2 + 9559^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 52663033409 + ... + 52663033412.

Almost surely, 2^210652133642 is an apocalyptic number.

210652133642 is a deficient number, since it is larger than the sum of its proper divisors (105326066824).

210652133642 is a wasteful number, since it uses less digits than its factorization.

210652133642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105326066823.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 210652133642 its reverse (246331256012), we get a palindrome (456983389654).

The spelling of 210652133642 in words is "two hundred ten billion, six hundred fifty-two million, one hundred thirty-three thousand, six hundred forty-two".