2556158667 has 8 divisors (see below), whose sum is σ = 3412693200. Its totient is φ = 1701864960.

The previous prime is 2556158651. The next prime is 2556158669. The reversal of 2556158667 is 7668516552.

It is a happy number.

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

It is not a de Polignac number, because 2556158667 - 2⁴ = 2556158651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2556158669) 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, 557542 + ... + 562107.

It is an arithmetic number, because the mean of its divisors is an integer number (426586650).

Almost surely, 2^2556158667 is an apocalyptic number.

2556158667 is a deficient number, since it is larger than the sum of its proper divisors (856534533).

2556158667 is a wasteful number, since it uses less digits than its factorization.

2556158667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120413.

The product of its digits is 3024000, while the sum is 51.

The square root of 2556158667 is about 50558.4678070845. The cubic root of 2556158667 is about 1367.2961870072.

The spelling of 2556158667 in words is "two billion, five hundred fifty-six million, one hundred fifty-eight thousand, six hundred sixty-seven".