6556617003723 has 4 divisors (see below), whose sum is σ = 8742156004968. Its totient is φ = 4371078002480.

The previous prime is 6556617003701. The next prime is 6556617003751. The reversal of 6556617003723 is 3273007166556.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6556617003723 - 2⁵ = 6556617003691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6556617003793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1092769500618 + ... + 1092769500623.

It is an arithmetic number, because the mean of its divisors is an integer number (2185539001242).

Almost surely, 2^{6556617003723} is an apocalyptic number.

6556617003723 is a deficient number, since it is larger than the sum of its proper divisors (2185539001245).

6556617003723 is a wasteful number, since it uses less digits than its factorization.

6556617003723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185539001244.

The product of its (nonzero) digits is 4762800, while the sum is 51.

The spelling of 6556617003723 in words is "six trillion, five hundred fifty-six billion, six hundred seventeen million, three thousand, seven hundred twenty-three".