243225646522342 has 24 divisors (see below), whose sum is σ = 401038796515896. Its totient is φ = 110552149884000.

The previous prime is 243225646522321. The next prime is 243225646522361.

243225646522342 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×243225646522342² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243225646522342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17149759 + ... + 27938602.

It is an arithmetic number, because the mean of its divisors is an integer number (16709949854829).

Almost surely, 2^{243225646522342} is an apocalyptic number.

243225646522342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243225646522342 is a deficient number, since it is larger than the sum of its proper divisors (157813149993554).

243225646522342 is a wasteful number, since it uses less digits than its factorization.

243225646522342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45110676 (or 45110665 counting only the distinct ones).

The product of its digits is 33177600, while the sum is 52.

The spelling of 243225646522342 in words is "two hundred forty-three trillion, two hundred twenty-five billion, six hundred forty-six million, five hundred twenty-two thousand, three hundred forty-two".