2145463441465 has 4 divisors (see below), whose sum is σ = 2574556129764. Its totient is φ = 1716370753168.

The previous prime is 2145463441427. The next prime is 2145463441483. The reversal of 2145463441465 is 5641443645412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1642629285801 + 502834155664 = 1281651^2 + 709108^2 .

It is a cyclic number.

It is not a de Polignac number, because 2145463441465 - 2⁷ = 2145463441337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214546344142 + ... + 214546344151.

It is an arithmetic number, because the mean of its divisors is an integer number (643639032441).

Almost surely, 2^{2145463441465} is an apocalyptic number.

It is an amenable number.

2145463441465 is a deficient number, since it is larger than the sum of its proper divisors (429092688299).

2145463441465 is an equidigital number, since it uses as much as digits as its factorization.

2145463441465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429092688298.

The product of its digits is 5529600, while the sum is 49.

The spelling of 2145463441465 in words is "two trillion, one hundred forty-five billion, four hundred sixty-three million, four hundred forty-one thousand, four hundred sixty-five".