557117001620 has 96 divisors (see below), whose sum is σ = 1252711329408. Its totient is φ = 207784991232.

The previous prime is 557117001601. The next prime is 557117001647. The reversal of 557117001620 is 26100711755.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1521287 + ... + 1851633.

It is an arithmetic number, because the mean of its divisors is an integer number (13049076348).

Almost surely, 2^557117001620 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 557117001620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (626355664704).

557117001620 is an abundant number, since it is smaller than the sum of its proper divisors (695594327788).

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

557117001620 is a wasteful number, since it uses less digits than its factorization.

557117001620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330489 (or 330487 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 35.

The spelling of 557117001620 in words is "five hundred fifty-seven billion, one hundred seventeen million, one thousand, six hundred twenty".