2500201776161 has 4 divisors (see below), whose sum is σ = 2500519108800. Its totient is φ = 2499884443524.

The previous prime is 2500201776139. The next prime is 2500201776181. The reversal of 2500201776161 is 1616771020052.

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 a de Polignac number, because none of the positive numbers 2^k-2500201776161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2500201776181) 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 3 ways as a sum of consecutive naturals, for example, 158654501 + ... + 158670258.

It is an arithmetic number, because the mean of its divisors is an integer number (625129777200).

Almost surely, 2^{2500201776161} is an apocalyptic number.

It is an amenable number.

2500201776161 is a deficient number, since it is larger than the sum of its proper divisors (317332639).

2500201776161 is an equidigital number, since it uses as much as digits as its factorization.

2500201776161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317332638.

The product of its (nonzero) digits is 35280, while the sum is 38.

The spelling of 2500201776161 in words is "two trillion, five hundred billion, two hundred one million, seven hundred seventy-six thousand, one hundred sixty-one".