1556231164 has 6 divisors (see below), whose sum is σ = 2723404544. Its totient is φ = 778115580.

The previous prime is 1556231123. The next prime is 1556231213. The reversal of 1556231164 is 4611326551.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 194528892 + ... + 194528899.

Almost surely, 2^1556231164 is an apocalyptic number.

It is an amenable number.

1556231164 is a deficient number, since it is larger than the sum of its proper divisors (1167173380).

1556231164 is a wasteful number, since it uses less digits than its factorization.

1556231164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389057795 (or 389057793 counting only the distinct ones).

The product of its digits is 21600, while the sum is 34.

The square root of 1556231164 is about 39449.0958578267. The cubic root of 1556231164 is about 1158.8432692274.

The spelling of 1556231164 in words is "one billion, five hundred fifty-six million, two hundred thirty-one thousand, one hundred sixty-four".