242663345531 has 16 divisors (see below), whose sum is σ = 262992258144. Its totient is φ = 223010371584.

The previous prime is 242663345467. The next prime is 242663345591. The reversal of 242663345531 is 135543366242.

It is a happy number.

It is not a de Polignac number, because 242663345531 - 2⁶ = 242663345467 is a prime.

It is a super-2 number, since 2×242663345531² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (242663345591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2461175 + ... + 2557871.

It is an arithmetic number, because the mean of its divisors is an integer number (16437016134).

Almost surely, 2^242663345531 is an apocalyptic number.

242663345531 is a deficient number, since it is larger than the sum of its proper divisors (20328912613).

242663345531 is a wasteful number, since it uses less digits than its factorization.

242663345531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100190.

The product of its digits is 1555200, while the sum is 44.

The spelling of 242663345531 in words is "two hundred forty-two billion, six hundred sixty-three million, three hundred forty-five thousand, five hundred thirty-one".