2551641560159 has 4 divisors (see below), whose sum is σ = 2551646081304. Its totient is φ = 2551637039016.

The previous prime is 2551641560147. The next prime is 2551641560191. The reversal of 2551641560159 is 9510651461552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2551641560159 is a prime.

It is a super-2 number, since 2×2551641560159² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551641565159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1269032 + ... + 2591085.

It is an arithmetic number, because the mean of its divisors is an integer number (637911520326).

Almost surely, 2^{2551641560159} is an apocalyptic number.

2551641560159 is a deficient number, since it is larger than the sum of its proper divisors (4521145).

2551641560159 is an equidigital number, since it uses as much as digits as its factorization.

2551641560159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4521144.

The product of its (nonzero) digits is 1620000, while the sum is 50.

The spelling of 2551641560159 in words is "two trillion, five hundred fifty-one billion, six hundred forty-one million, five hundred sixty thousand, one hundred fifty-nine".