244195614661 has 4 divisors (see below), whose sum is σ = 244196704800. Its totient is φ = 244194524524.

The previous prime is 244195614647. The next prime is 244195614671. The reversal of 244195614661 is 166416591442.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 244195614661 - 2⁵ = 244195614629 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 (244195614601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72481 + ... + 702598.

It is an arithmetic number, because the mean of its divisors is an integer number (61049176200).

Almost surely, 2^244195614661 is an apocalyptic number.

It is an amenable number.

244195614661 is a deficient number, since it is larger than the sum of its proper divisors (1090139).

244195614661 is an equidigital number, since it uses as much as digits as its factorization.

244195614661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090138.

The product of its digits is 1244160, while the sum is 49.

The spelling of 244195614661 in words is "two hundred forty-four billion, one hundred ninety-five million, six hundred fourteen thousand, six hundred sixty-one".