557211205020 has 48 divisors (see below), whose sum is σ = 1560924560160. Its totient is φ = 148519827456.

The previous prime is 557211204961. The next prime is 557211205069. The reversal of 557211205020 is 20502112755.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2053297 + ... + 2308776.

It is an arithmetic number, because the mean of its divisors is an integer number (32519261670).

Almost surely, 2^557211205020 is an apocalyptic number.

It is an amenable number.

557211205020 is an abundant number, since it is smaller than the sum of its proper divisors (1003713355140).

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

557211205020 is a wasteful number, since it uses less digits than its factorization.

557211205020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4364214 (or 4364212 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 30.

Adding to 557211205020 its reverse (20502112755), we get a palindrome (577713317775).

The spelling of 557211205020 in words is "five hundred fifty-seven billion, two hundred eleven million, two hundred five thousand, twenty".