621078006216 has 16 divisors (see below), whose sum is σ = 1552695015600. Its totient is φ = 207026002064.

The previous prime is 621078006187. The next prime is 621078006251. The reversal of 621078006216 is 612600870126.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12939125106 + ... + 12939125153.

It is an arithmetic number, because the mean of its divisors is an integer number (97043438475).

Almost surely, 2^621078006216 is an apocalyptic number.

It is an amenable number.

621078006216 is an abundant number, since it is smaller than the sum of its proper divisors (931617009384).

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

621078006216 is a wasteful number, since it uses less digits than its factorization.

621078006216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25878250268 (or 25878250264 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 621078006216 in words is "six hundred twenty-one billion, seventy-eight million, six thousand, two hundred sixteen".