556722646 has 8 divisors (see below), whose sum is σ = 857653920. Its totient is φ = 270838008.

The previous prime is 556722611. The next prime is 556722689. The reversal of 556722646 is 646227655.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3761566 + ... + 3761713.

It is an arithmetic number, because the mean of its divisors is an integer number (107206740).

Almost surely, 2^556722646 is an apocalyptic number.

556722646 is a deficient number, since it is larger than the sum of its proper divisors (300931274).

556722646 is a wasteful number, since it uses less digits than its factorization.

556722646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7523318.

The product of its digits is 604800, while the sum is 43.

The square root of 556722646 is about 23594.9707776890. The cubic root of 556722646 is about 822.6459473152.

It can be divided in two parts, 5567226 and 46, that multiplied together give a triangular number (256092396 = T₂₂₆₃₁).

The spelling of 556722646 in words is "five hundred fifty-six million, seven hundred twenty-two thousand, six hundred forty-six".