1557013466 has 16 divisors (see below), whose sum is σ = 2345726760. Its totient is φ = 775111680.

The previous prime is 1557013453. The next prime is 1557013477. The reversal of 1557013466 is 6643107551.

It can be written as a sum of positive squares in 4 ways, for example, as 1244607841 + 312405625 = 35279^2 + 17675^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 719426 + ... + 721586.

Almost surely, 2^1557013466 is an apocalyptic number.

1557013466 is a deficient number, since it is larger than the sum of its proper divisors (788713294).

1557013466 is a wasteful number, since it uses less digits than its factorization.

1557013466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3569.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 1557013466 is about 39459.0099470324. The cubic root of 1557013466 is about 1159.0374163788.

The spelling of 1557013466 in words is "one billion, five hundred fifty-seven million, thirteen thousand, four hundred sixty-six".