145533022320 has 480 divisors, whose sum is σ = 544798612800. Its totient is φ = 32005865472.

The previous prime is 145533022319. The next prime is 145533022321. The reversal of 145533022320 is 23220335541.

It is an interprime number because it is at equal distance from previous prime (145533022319) and next prime (145533022321).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145533022321) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 132664012 + ... + 132665108.

It is an arithmetic number, because the mean of its divisors is an integer number (1134997110).

Almost surely, 2^145533022320 is an apocalyptic number.

145533022320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145533022320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272399306400).

145533022320 is an abundant number, since it is smaller than the sum of its proper divisors (399265590480).

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

145533022320 is a wasteful number, since it uses less digits than its factorization.

145533022320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545 (or 1532 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 145533022320 its reverse (23220335541), we get a palindrome (168753357861).

The spelling of 145533022320 in words is "one hundred forty-five billion, five hundred thirty-three million, twenty-two thousand, three hundred twenty".