11701630456261 has 4 divisors (see below), whose sum is σ = 11750184939724. Its totient is φ = 11653075972800.

The previous prime is 11701630456247. The next prime is 11701630456273. The reversal of 11701630456261 is 16265403610711.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4758964065025 + 6942666391236 = 2181505^2 + 2634894^2 .

It is a cyclic number.

It is not a de Polignac number, because 11701630456261 - 2²⁵ = 11701596901829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11701630457261) 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, 24277241370 + ... + 24277241851.

It is an arithmetic number, because the mean of its divisors is an integer number (2937546234931).

Almost surely, 2^{11701630456261} is an apocalyptic number.

It is an amenable number.

11701630456261 is a deficient number, since it is larger than the sum of its proper divisors (48554483463).

11701630456261 is an equidigital number, since it uses as much as digits as its factorization.

11701630456261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48554483462.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 11701630456261 in words is "eleven trillion, seven hundred one billion, six hundred thirty million, four hundred fifty-six thousand, two hundred sixty-one".