242566255152101 has 4 divisors (see below), whose sum is σ = 248482505277804. Its totient is φ = 236650005026400.

The previous prime is 242566255152077. The next prime is 242566255152121. The reversal of 242566255152101 is 101251552665242.

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

It can be written as a sum of positive squares in 2 ways, for example, as 31350928656100 + 211215326496001 = 5599190^2 + 14533249^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242566255152101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242566255152121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2958125062790 + ... + 2958125062871.

It is an arithmetic number, because the mean of its divisors is an integer number (62120626319451).

Almost surely, 2^{242566255152101} is an apocalyptic number.

It is an amenable number.

242566255152101 is a deficient number, since it is larger than the sum of its proper divisors (5916250125703).

242566255152101 is an equidigital number, since it uses as much as digits as its factorization.

242566255152101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5916250125702.

The product of its (nonzero) digits is 1440000, while the sum is 47.

The spelling of 242566255152101 in words is "two hundred forty-two trillion, five hundred sixty-six billion, two hundred fifty-five million, one hundred fifty-two thousand, one hundred one".