2663601461 has 4 divisors (see below), whose sum is σ = 2663712192. Its totient is φ = 2663490732.

The previous prime is 2663601427. The next prime is 2663601491. The reversal of 2663601461 is 1641063662.

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 2663601461 - 2¹⁸ = 2663339317 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 (2663601491) 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, 2381 + ... + 73026.

It is an arithmetic number, because the mean of its divisors is an integer number (665928048).

Almost surely, 2^2663601461 is an apocalyptic number.

It is an amenable number.

2663601461 is a deficient number, since it is larger than the sum of its proper divisors (110731).

2663601461 is an equidigital number, since it uses as much as digits as its factorization.

2663601461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110730.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 2663601461 is about 51610.0906897091. The cubic root of 2663601461 is about 1386.1910212673.

The spelling of 2663601461 in words is "two billion, six hundred sixty-three million, six hundred one thousand, four hundred sixty-one".