511016125242 has 96 divisors (see below), whose sum is σ = 1212354404352. Its totient is φ = 140660993088.

The previous prime is 511016125231. The next prime is 511016125259. The reversal of 511016125242 is 242521610115.

It is a super-2 number, since 2×511016125242² (a number of 24 digits) contains 22 as substring.

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, 16338463 + ... + 16369709.

It is an arithmetic number, because the mean of its divisors is an integer number (12628691712).

Almost surely, 2^511016125242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 511016125242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (606177202176).

511016125242 is an abundant number, since it is smaller than the sum of its proper divisors (701338279110).

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

511016125242 is a wasteful number, since it uses less digits than its factorization.

511016125242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31780 (or 31751 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 30.

Adding to 511016125242 its reverse (242521610115), we get a palindrome (753537735357).

The spelling of 511016125242 in words is "five hundred eleven billion, sixteen million, one hundred twenty-five thousand, two hundred forty-two".