145442004423320 has 64 divisors (see below), whose sum is σ = 356997763722240. Its totient is φ = 52887445628800.

The previous prime is 145442004423319. The next prime is 145442004423323. The reversal of 145442004423320 is 23324400244541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145442004423323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41380025 + ... + 44757015.

It is an arithmetic number, because the mean of its divisors is an integer number (5578090058160).

Almost surely, 2^{145442004423320} is an apocalyptic number.

145442004423320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145442004423320 is an abundant number, since it is smaller than the sum of its proper divisors (211555759298920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145442004423320 is a wasteful number, since it uses less digits than its factorization.

145442004423320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3474896 (or 3474892 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 38.

Adding to 145442004423320 its reverse (23324400244541), we get a palindrome (168766404667861).

The spelling of 145442004423320 in words is "one hundred forty-five trillion, four hundred forty-two billion, four million, four hundred twenty-three thousand, three hundred twenty".