6556212843 has 8 divisors (see below), whose sum is σ = 9255829968. Its totient is φ = 4113702144.

The previous prime is 6556212833. The next prime is 6556212853. The reversal of 6556212843 is 3482126556.

It is an interprime number because it is at equal distance from previous prime (6556212833) and next prime (6556212853).

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

It is not a de Polignac number, because 6556212843 - 2⁵ = 6556212811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6556212795 and 6556212804.

It is not an unprimeable number, because it can be changed into a prime (6556212823) 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, 64276546 + ... + 64276647.

It is an arithmetic number, because the mean of its divisors is an integer number (1156978746).

Almost surely, 2^6556212843 is an apocalyptic number.

6556212843 is a deficient number, since it is larger than the sum of its proper divisors (2699617125).

6556212843 is a wasteful number, since it uses less digits than its factorization.

6556212843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128553213.

The product of its digits is 345600, while the sum is 42.

The square root of 6556212843 is about 80970.4442559135. Note that the first 3 decimals coincide. The cubic root of 6556212843 is about 1871.6200173058.

The spelling of 6556212843 in words is "six billion, five hundred fifty-six million, two hundred twelve thousand, eight hundred forty-three".