542423615220 has 144 divisors (see below), whose sum is σ = 1651140167040. Its totient is φ = 144138279168.

The previous prime is 542423615207. The next prime is 542423615231. The reversal of 542423615220 is 22516324245.

542423615220 is a `hidden beast` number, since 5 + 4 + 2 + 423 + 6 + 1 + 5 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70725546 + ... + 70733214.

It is an arithmetic number, because the mean of its divisors is an integer number (11466251160).

Almost surely, 2^542423615220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542423615220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (825570083520).

542423615220 is an abundant number, since it is smaller than the sum of its proper divisors (1108716551820).

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

542423615220 is a wasteful number, since it uses less digits than its factorization.

542423615220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9014 (or 9009 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 542423615220 its reverse (22516324245), we get a palindrome (564939939465).

The spelling of 542423615220 in words is "five hundred forty-two billion, four hundred twenty-three million, six hundred fifteen thousand, two hundred twenty".