242612661533 has 4 divisors (see below), whose sum is σ = 264668358048. Its totient is φ = 220556965020.

The previous prime is 242612661521. The next prime is 242612661553. The reversal of 242612661533 is 335166216242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 242612661533 - 2²⁸ = 242344226077 is a prime.

It is a super-2 number, since 2×242612661533² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242612661553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11027848241 + ... + 11027848262.

It is an arithmetic number, because the mean of its divisors is an integer number (66167089512).

Almost surely, 2^242612661533 is an apocalyptic number.

It is an amenable number.

242612661533 is a deficient number, since it is larger than the sum of its proper divisors (22055696515).

242612661533 is a wasteful number, since it uses less digits than its factorization.

242612661533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22055696514.

The product of its digits is 311040, while the sum is 41.

Adding to 242612661533 its reverse (335166216242), we get a palindrome (577778877775).

The spelling of 242612661533 in words is "two hundred forty-two billion, six hundred twelve million, six hundred sixty-one thousand, five hundred thirty-three".