242055451321555 has 32 divisors (see below), whose sum is σ = 297178696488960. Its totient is φ = 189184478340480.

The previous prime is 242055451321553. The next prime is 242055451321561. The reversal of 242055451321555 is 555123154550242.

242055451321555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 242055451321555 - 2¹ = 242055451321553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242055451321499 and 242055451321508.

It is not an unprimeable number, because it can be changed into a prime (242055451321553) 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, 834969642 + ... + 835259488.

It is an arithmetic number, because the mean of its divisors is an integer number (9286834265280).

Almost surely, 2^{242055451321555} is an apocalyptic number.

242055451321555 is a deficient number, since it is larger than the sum of its proper divisors (55123245167405).

242055451321555 is a wasteful number, since it uses less digits than its factorization.

242055451321555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296259.

The product of its (nonzero) digits is 6000000, while the sum is 49.

The spelling of 242055451321555 in words is "two hundred forty-two trillion, fifty-five billion, four hundred fifty-one million, three hundred twenty-one thousand, five hundred fifty-five".