45453144661 has 2 divisors, whose sum is σ = 45453144662. Its totient is φ = 45453144660.

The previous prime is 45453144631. The next prime is 45453144677. The reversal of 45453144661 is 16644135454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27314172900 + 18138971761 = 165270^2 + 134681^2 .

It is a cyclic number.

It is not a de Polignac number, because 45453144661 - 2⁵ = 45453144629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45453144631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22726572330 + 22726572331.

It is an arithmetic number, because the mean of its divisors is an integer number (22726572331).

Almost surely, 2^45453144661 is an apocalyptic number.

It is an amenable number.

45453144661 is a deficient number, since it is larger than the sum of its proper divisors (1).

45453144661 is an equidigital number, since it uses as much as digits as its factorization.

45453144661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 691200, while the sum is 43.

The spelling of 45453144661 in words is "forty-five billion, four hundred fifty-three million, one hundred forty-four thousand, six hundred sixty-one".