242145511555 has 8 divisors (see below), whose sum is σ = 290883412944. Its totient is φ = 193510543200.

The previous prime is 242145511547. The next prime is 242145511579. The reversal of 242145511555 is 555115541242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 242145511555 - 2³ = 242145511547 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25728081 + ... + 25737490.

It is an arithmetic number, because the mean of its divisors is an integer number (36360426618).

Almost surely, 2^242145511555 is an apocalyptic number.

242145511555 is a deficient number, since it is larger than the sum of its proper divisors (48737901389).

242145511555 is an equidigital number, since it uses as much as digits as its factorization.

242145511555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51466517.

The product of its digits is 200000, while the sum is 40.

The spelling of 242145511555 in words is "two hundred forty-two billion, one hundred forty-five million, five hundred eleven thousand, five hundred fifty-five".