145205230477232 has 80 divisors (see below), whose sum is σ = 294103163692800. Its totient is φ = 69363486716160.

The previous prime is 145205230477183. The next prime is 145205230477247. The reversal of 145205230477232 is 232774032502541.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17649869 + ... + 24534227.

It is an arithmetic number, because the mean of its divisors is an integer number (3676289546160).

Almost surely, 2^{145205230477232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145205230477232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147051581846400).

145205230477232 is an abundant number, since it is smaller than the sum of its proper divisors (148897933215568).

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

145205230477232 is a wasteful number, since it uses less digits than its factorization.

145205230477232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6884874 (or 6884868 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 47.

Adding to 145205230477232 its reverse (232774032502541), we get a palindrome (377979262979773).

The spelling of 145205230477232 in words is "one hundred forty-five trillion, two hundred five billion, two hundred thirty million, four hundred seventy-seven thousand, two hundred thirty-two".