620917752817600 has 672 divisors, whose sum is σ = 1813872882483200. Its totient is φ = 204715703808000.

The previous prime is 620917752817597. The next prime is 620917752817613. The reversal of 620917752817600 is 6718257719026.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 35281413601 + ... + 35281431199.

Almost surely, 2^{620917752817600} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620917752817600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (906936441241600).

620917752817600 is an abundant number, since it is smaller than the sum of its proper divisors (1192955129665600).

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

620917752817600 is a wasteful number, since it uses less digits than its factorization.

620917752817600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18297 (or 18282 counting only the distinct ones).

The product of its (nonzero) digits is 17781120, while the sum is 61.

The spelling of 620917752817600 in words is "six hundred twenty trillion, nine hundred seventeen billion, seven hundred fifty-two million, eight hundred seventeen thousand, six hundred".