6556251151 has 4 divisors (see below), whose sum is σ = 6708722152. Its totient is φ = 6403780152.

The previous prime is 6556251071. The next prime is 6556251179. The reversal of 6556251151 is 1511526556.

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 6556251151 - 2⁹ = 6556250639 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 6556251151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6556251851) 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, 76235436 + ... + 76235521.

It is an arithmetic number, because the mean of its divisors is an integer number (1677180538).

Almost surely, 2^6556251151 is an apocalyptic number.

6556251151 is a deficient number, since it is larger than the sum of its proper divisors (152471001).

6556251151 is a wasteful number, since it uses less digits than its factorization.

6556251151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152471000.

The product of its digits is 45000, while the sum is 37.

The square root of 6556251151 is about 80970.6808110195. The cubic root of 6556251151 is about 1871.6236625952.

The spelling of 6556251151 in words is "six billion, five hundred fifty-six million, two hundred fifty-one thousand, one hundred fifty-one".