2245166456541 has 4 divisors (see below), whose sum is σ = 2993555275392. Its totient is φ = 1496777637692.

The previous prime is 2245166456503. The next prime is 2245166456549. The reversal of 2245166456541 is 1456546615422.

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 not a de Polignac number, because 2245166456541 - 2⁴¹ = 46143200989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2245166456549) 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, 374194409421 + ... + 374194409426.

It is an arithmetic number, because the mean of its divisors is an integer number (748388818848).

Almost surely, 2^{2245166456541} is an apocalyptic number.

It is an amenable number.

2245166456541 is a deficient number, since it is larger than the sum of its proper divisors (748388818851).

2245166456541 is an equidigital number, since it uses as much as digits as its factorization.

2245166456541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748388818850.

The product of its digits is 6912000, while the sum is 51.

The spelling of 2245166456541 in words is "two trillion, two hundred forty-five billion, one hundred sixty-six million, four hundred fifty-six thousand, five hundred forty-one".