651024216520242 has 16 divisors (see below), whose sum is σ = 1302049002884160. Its totient is φ = 217007977199472.

The previous prime is 651024216520231. The next prime is 651024216520259. The reversal of 651024216520242 is 242025612420156.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 651024216520194 and 651024216520203.

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, 8098513 + ... + 36981540.

It is an arithmetic number, because the mean of its divisors is an integer number (81378062680260).

Almost surely, 2^{651024216520242} is an apocalyptic number.

651024216520242 is an abundant number, since it is smaller than the sum of its proper divisors (651024786363918).

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

651024216520242 is a wasteful number, since it uses less digits than its factorization.

651024216520242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47486977.

The product of its (nonzero) digits is 460800, while the sum is 42.

Adding to 651024216520242 its reverse (242025612420156), we get a palindrome (893049828940398).

The spelling of 651024216520242 in words is "six hundred fifty-one trillion, twenty-four billion, two hundred sixteen million, five hundred twenty thousand, two hundred forty-two".