145663034441 has 4 divisors (see below), whose sum is σ = 147506870400. Its totient is φ = 143819198484.

The previous prime is 145663034393. The next prime is 145663034449. The reversal of 145663034441 is 144430366541.

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 an emirpimes, since its reverse is a distinct semiprime: 144430366541 = 19 ⋅7601598239.

It is a cyclic number.

It is not a de Polignac number, because 145663034441 - 2²⁶ = 145595925577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145663034449) 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, 921917861 + ... + 921918018.

It is an arithmetic number, because the mean of its divisors is an integer number (36876717600).

Almost surely, 2^145663034441 is an apocalyptic number.

It is an amenable number.

145663034441 is a deficient number, since it is larger than the sum of its proper divisors (1843835959).

145663034441 is an equidigital number, since it uses as much as digits as its factorization.

145663034441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843835958.

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 145663034441 in words is "one hundred forty-five billion, six hundred sixty-three million, thirty-four thousand, four hundred forty-one".