145593394561 has 8 divisors (see below), whose sum is σ = 147650943744. Its totient is φ = 143536038240.

The previous prime is 145593394543. The next prime is 145593394577. The reversal of 145593394561 is 165493395541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145593394561 - 2¹⁹ = 145592870273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145593394511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2220301 + ... + 2284933.

It is an arithmetic number, because the mean of its divisors is an integer number (18456367968).

Almost surely, 2^145593394561 is an apocalyptic number.

It is an amenable number.

145593394561 is a deficient number, since it is larger than the sum of its proper divisors (2057549183).

145593394561 is an equidigital number, since it uses as much as digits as its factorization.

145593394561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96431.

The product of its digits is 8748000, while the sum is 55.

The spelling of 145593394561 in words is "one hundred forty-five billion, five hundred ninety-three million, three hundred ninety-four thousand, five hundred sixty-one".