620817337616 has 60 divisors (see below), whose sum is σ = 1425614956812. Its totient is φ = 261044469504.

The previous prime is 620817337607. The next prime is 620817337717. The reversal of 620817337616 is 616733718026.

It can be written as a sum of positive squares in 2 ways, for example, as 510595993600 + 110221344016 = 714560^2 + 331996^2 .

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, 7428815 + ... + 7511918.

Almost surely, 2^620817337616 is an apocalyptic number.

It is an amenable number.

620817337616 is an abundant number, since it is smaller than the sum of its proper divisors (804797619196).

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

620817337616 is a wasteful number, since it uses less digits than its factorization.

620817337616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14940808 (or 14940795 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 50.

The spelling of 620817337616 in words is "six hundred twenty billion, eight hundred seventeen million, three hundred thirty-seven thousand, six hundred sixteen".