556151665 has 8 divisors (see below), whose sum is σ = 668099880. Its totient is φ = 444442752.

The previous prime is 556151627. The next prime is 556151767. The reversal of 556151665 is 566151655.

It can be written as a sum of positive squares in 4 ways, for example, as 6155361 + 549996304 = 2481^2 + 23452^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 556151665 - 2⁹ = 556151153 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54670 + ... + 64039.

It is an arithmetic number, because the mean of its divisors is an integer number (83512485).

Almost surely, 2^556151665 is an apocalyptic number.

It is an amenable number.

556151665 is a deficient number, since it is larger than the sum of its proper divisors (111948215).

556151665 is a wasteful number, since it uses less digits than its factorization.

556151665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119651.

The product of its digits is 135000, while the sum is 40.

The square root of 556151665 is about 23582.8680401685. The cubic root of 556151665 is about 822.3646128049.

The spelling of 556151665 in words is "five hundred fifty-six million, one hundred fifty-one thousand, six hundred sixty-five".