2548244562661 has 16 divisors (see below), whose sum is σ = 2922491116800. Its totient is φ = 2176562626560.

The previous prime is 2548244562637. The next prime is 2548244562671. The reversal of 2548244562661 is 1662654428452.

It is not a de Polignac number, because 2548244562661 - 2¹³ = 2548244554469 is a prime.

It is a super-2 number, since 2×2548244562661² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2548244562631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2126565 + ... + 3101413.

It is an arithmetic number, because the mean of its divisors is an integer number (182655694800).

Almost surely, 2^{2548244562661} is an apocalyptic number.

It is an amenable number.

2548244562661 is a deficient number, since it is larger than the sum of its proper divisors (374246554139).

2548244562661 is an equidigital number, since it uses as much as digits as its factorization.

2548244562661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976164.

The product of its digits is 22118400, while the sum is 55.

The spelling of 2548244562661 in words is "two trillion, five hundred forty-eight billion, two hundred forty-four million, five hundred sixty-two thousand, six hundred sixty-one".