542122501320 has 512 divisors, whose sum is σ = 1886504256000. Its totient is φ = 138385428480.

The previous prime is 542122501307. The next prime is 542122501337. The reversal of 542122501320 is 23105221245.

542122501320 is a `hidden beast` number, since 5 + 4 + 2 + 122 + 501 + 32 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 485337402 + ... + 485338518.

It is an arithmetic number, because the mean of its divisors is an integer number (3684578625).

Almost surely, 2^542122501320 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 542122501320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (943252128000).

542122501320 is an abundant number, since it is smaller than the sum of its proper divisors (1344381754680).

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

542122501320 is a wasteful number, since it uses less digits than its factorization.

542122501320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390 (or 1380 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 542122501320 its reverse (23105221245), we get a palindrome (565227722565).

The spelling of 542122501320 in words is "five hundred forty-two billion, one hundred twenty-two million, five hundred one thousand, three hundred twenty".