243656656342 has 32 divisors (see below), whose sum is σ = 403141536000. Its totient is φ = 109524924000.

The previous prime is 243656656337. The next prime is 243656656361.

243656656342 is nontrivially palindromic in base 10.

243656656342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 243656656342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1798909 + ... + 1929607.

It is an arithmetic number, because the mean of its divisors is an integer number (12598173000).

Almost surely, 2^243656656342 is an apocalyptic number.

243656656342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243656656342 is a deficient number, since it is larger than the sum of its proper divisors (159484879658).

243656656342 is a wasteful number, since it uses less digits than its factorization.

243656656342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131652.

The product of its digits is 18662400, while the sum is 52.

It can be divided in two parts, 243656 and 656342, that added together give a palindrome (899998).

The spelling of 243656656342 in words is "two hundred forty-three billion, six hundred fifty-six million, six hundred fifty-six thousand, three hundred forty-two".