612221632350 has 24 divisors (see below), whose sum is σ = 1518309648600. Its totient is φ = 163259101920.

The previous prime is 612221632291. The next prime is 612221632391. The reversal of 612221632350 is 53236122216.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2040738625 + ... + 2040738924.

It is an arithmetic number, because the mean of its divisors is an integer number (63262902025).

Almost surely, 2^612221632350 is an apocalyptic number.

612221632350 is an abundant number, since it is smaller than the sum of its proper divisors (906088016250).

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

612221632350 is a wasteful number, since it uses less digits than its factorization.

612221632350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4081477564 (or 4081477559 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 612221632350 its reverse (53236122216), we get a palindrome (665457754566).

The spelling of 612221632350 in words is "six hundred twelve billion, two hundred twenty-one million, six hundred thirty-two thousand, three hundred fifty".