1252331616446 has 8 divisors (see below), whose sum is σ = 1879877661984. Its totient is φ = 625705729120.

The previous prime is 1252331616433. The next prime is 1252331616457. The reversal of 1252331616446 is 6446161332521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1252331616397 and 1252331616406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230036150 + ... + 230041593.

It is an arithmetic number, because the mean of its divisors is an integer number (234984707748).

Almost surely, 2^{1252331616446} is an apocalyptic number.

1252331616446 is a deficient number, since it is larger than the sum of its proper divisors (627546045538).

1252331616446 is a wasteful number, since it uses less digits than its factorization.

1252331616446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460079106.

The product of its digits is 622080, while the sum is 44.

Adding to 1252331616446 its reverse (6446161332521), we get a palindrome (7698492948967).

The spelling of 1252331616446 in words is "one trillion, two hundred fifty-two billion, three hundred thirty-one million, six hundred sixteen thousand, four hundred forty-six".