2557253380165 has 16 divisors (see below), whose sum is σ = 3378389794560. Its totient is φ = 1842758061120.

The previous prime is 2557253380147. The next prime is 2557253380273. The reversal of 2557253380165 is 5610833527552.

It is not a de Polignac number, because 2557253380165 - 2¹⁷ = 2557253249093 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 213276189 + ... + 213288178.

It is an arithmetic number, because the mean of its divisors is an integer number (211149362160).

Almost surely, 2^{2557253380165} is an apocalyptic number.

It is an amenable number.

2557253380165 is a deficient number, since it is larger than the sum of its proper divisors (821136414395).

2557253380165 is a wasteful number, since it uses less digits than its factorization.

2557253380165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426564492.

The product of its (nonzero) digits is 7560000, while the sum is 52.

The spelling of 2557253380165 in words is "two trillion, five hundred fifty-seven billion, two hundred fifty-three million, three hundred eighty thousand, one hundred sixty-five".