1557200206000 has 40 divisors (see below), whose sum is σ = 3765310102944. Its totient is φ = 622880081600.

The previous prime is 1557200205949. The next prime is 1557200206033. The reversal of 1557200206000 is 6020027551.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 1557200206000.

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 7 ways as a sum of consecutive naturals, for example, 389298052 + ... + 389302051.

Almost surely, 2^{1557200206000} is an apocalyptic number.

1557200206000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1557200206000 is an abundant number, since it is smaller than the sum of its proper divisors (2208109896944).

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

1557200206000 is an equidigital number, since it uses as much as digits as its factorization.

1557200206000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778600126 (or 778600110 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The spelling of 1557200206000 in words is "one trillion, five hundred fifty-seven billion, two hundred million, two hundred six thousand".