25774662077161 has 4 divisors (see below), whose sum is σ = 25790944240512. Its totient is φ = 25758379913812.

The previous prime is 25774662077159. The next prime is 25774662077233. The reversal of 25774662077161 is 16177026647752.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25774662077161 - 2¹ = 25774662077159 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 25774662077161.

It is not an unprimeable number, because it can be changed into a prime (25774662777161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8141079301 + ... + 8141082466.

It is an arithmetic number, because the mean of its divisors is an integer number (6447736060128).

Almost surely, 2^{25774662077161} is an apocalyptic number.

It is an amenable number.

25774662077161 is a deficient number, since it is larger than the sum of its proper divisors (16282163351).

25774662077161 is a wasteful number, since it uses less digits than its factorization.

25774662077161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16282163350.

The product of its (nonzero) digits is 41489280, while the sum is 61.

The spelling of 25774662077161 in words is "twenty-five trillion, seven hundred seventy-four billion, six hundred sixty-two million, seventy-seven thousand, one hundred sixty-one".