242221526366564 has 6 divisors (see below), whose sum is σ = 423887671141494. Its totient is φ = 121110763183280.

The previous prime is 242221526366531. The next prime is 242221526366597. The reversal of 242221526366564 is 465663625122242.

It is an interprime number because it is at equal distance from previous prime (242221526366531) and next prime (242221526366597).

It can be written as a sum of positive squares in only one way, i.e., 237036569664064 + 5184956702500 = 15395992^2 + 2277050^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30277690795817 + ... + 30277690795824.

It is an arithmetic number, because the mean of its divisors is an integer number (70647945190249).

Almost surely, 2^{242221526366564} is an apocalyptic number.

It is an amenable number.

242221526366564 is a deficient number, since it is larger than the sum of its proper divisors (181666144774930).

242221526366564 is a wasteful number, since it uses less digits than its factorization.

242221526366564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60555381591645 (or 60555381591643 counting only the distinct ones).

The product of its digits is 49766400, while the sum is 56.

The spelling of 242221526366564 in words is "two hundred forty-two trillion, two hundred twenty-one billion, five hundred twenty-six million, three hundred sixty-six thousand, five hundred sixty-four".