621103344216 has 32 divisors (see below), whose sum is σ = 1552793382000. Its totient is φ = 207029778560.

The previous prime is 621103344187. The next prime is 621103344223. The reversal of 621103344216 is 612443301126.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 892510 + ... + 1427858.

Almost surely, 2^621103344216 is an apocalyptic number.

It is an amenable number.

621103344216 is an abundant number, since it is smaller than the sum of its proper divisors (931690037784).

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

621103344216 is a wasteful number, since it uses less digits than its factorization.

621103344216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583699 (or 583695 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The spelling of 621103344216 in words is "six hundred twenty-one billion, one hundred three million, three hundred forty-four thousand, two hundred sixteen".