243345651425655 has 32 divisors (see below), whose sum is σ = 391306009156608. Its totient is φ = 129134623766400.

The previous prime is 243345651425647. The next prime is 243345651425659. The reversal of 243345651425655 is 556524156543342.

It is not a de Polignac number, because 243345651425655 - 2³ = 243345651425647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243345651425659) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36462841 + ... + 42617250.

It is an arithmetic number, because the mean of its divisors is an integer number (12228312786144).

Almost surely, 2^{243345651425655} is an apocalyptic number.

243345651425655 is a deficient number, since it is larger than the sum of its proper divisors (147960357730953).

243345651425655 is a wasteful number, since it uses less digits than its factorization.

243345651425655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79081127.

The product of its digits is 259200000, while the sum is 60.

The spelling of 243345651425655 in words is "two hundred forty-three trillion, three hundred forty-five billion, six hundred fifty-one million, four hundred twenty-five thousand, six hundred fifty-five".