242655516420 has 48 divisors (see below), whose sum is σ = 679457298240. Its totient is φ = 64706056576.

The previous prime is 242655516409. The next prime is 242655516421. The reversal of 242655516420 is 24615556242.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (242655516421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3045814 + ... + 3124466.

It is an arithmetic number, because the mean of its divisors is an integer number (14155360380).

Almost surely, 2^242655516420 is an apocalyptic number.

242655516420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242655516420 is an abundant number, since it is smaller than the sum of its proper divisors (436801781820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242655516420 is a wasteful number, since it uses less digits than its factorization.

242655516420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130084 (or 130082 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 242655516420 in words is "two hundred forty-two billion, six hundred fifty-five million, five hundred sixteen thousand, four hundred twenty".