557170012020 has 48 divisors (see below), whose sum is σ = 1596356879040. Its totient is φ = 145123351296.

The previous prime is 557170011997. The next prime is 557170012033. The reversal of 557170012020 is 20210071755.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107976105 + ... + 107981264.

It is an arithmetic number, because the mean of its divisors is an integer number (33257434980).

Almost surely, 2^557170012020 is an apocalyptic number.

It is an amenable number.

557170012020 is an abundant number, since it is smaller than the sum of its proper divisors (1039186867020).

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

557170012020 is a wasteful number, since it uses less digits than its factorization.

557170012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215957424 (or 215957422 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 30.

Adding to 557170012020 its reverse (20210071755), we get a palindrome (577380083775).

The spelling of 557170012020 in words is "five hundred fifty-seven billion, one hundred seventy million, twelve thousand, twenty".