6556502001 has 8 divisors (see below), whose sum is σ = 9990860224. Its totient is φ = 3746572560.

The previous prime is 6556501951. The next prime is 6556502011. The reversal of 6556502001 is 1002056556.

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

It is not a de Polignac number, because 6556502001 - 2¹³ = 6556493809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6556502001.

It is not an unprimeable number, because it can be changed into a prime (6556502011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156107170 + ... + 156107211.

It is an arithmetic number, because the mean of its divisors is an integer number (1248857528).

Almost surely, 2^6556502001 is an apocalyptic number.

It is an amenable number.

6556502001 is a deficient number, since it is larger than the sum of its proper divisors (3434358223).

6556502001 is a wasteful number, since it uses less digits than its factorization.

6556502001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312214391.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 6556502001 is about 80972.2298136837. The cubic root of 6556502001 is about 1871.6475324764.

Adding to 6556502001 its reverse (1002056556), we get a palindrome (7558558557).

The spelling of 6556502001 in words is "six billion, five hundred fifty-six million, five hundred two thousand, one".