6556680503 has 8 divisors (see below), whose sum is σ = 6585590016. Its totient is φ = 6527806200.

The previous prime is 6556680491. The next prime is 6556680539. The reversal of 6556680503 is 3050866556.

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 6556680503 - 2⁶ = 6556680439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6556680553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407000 + ... + 422802.

It is an arithmetic number, because the mean of its divisors is an integer number (823198752).

Almost surely, 2^6556680503 is an apocalyptic number.

6556680503 is a deficient number, since it is larger than the sum of its proper divisors (28909513).

6556680503 is a wasteful number, since it uses less digits than its factorization.

6556680503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17605.

The product of its (nonzero) digits is 648000, while the sum is 44.

The square root of 6556680503 is about 80973.3320482738. The cubic root of 6556680503 is about 1871.6645176409.

The spelling of 6556680503 in words is "six billion, five hundred fifty-six million, six hundred eighty thousand, five hundred three".