145440343632 has 160 divisors (see below), whose sum is σ = 402574233600. Its totient is φ = 45112564224.

The previous prime is 145440343567. The next prime is 145440343637. The reversal of 145440343632 is 236343044541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145440343637) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14188333 + ... + 14198579.

It is an arithmetic number, because the mean of its divisors is an integer number (2516088960).

Almost surely, 2^145440343632 is an apocalyptic number.

145440343632 is a gapful number since it is divisible by the number (12) 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 145440343632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201287116800).

145440343632 is an abundant number, since it is smaller than the sum of its proper divisors (257133889968).

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

145440343632 is a wasteful number, since it uses less digits than its factorization.

145440343632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10553 (or 10547 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 39.

The spelling of 145440343632 in words is "one hundred forty-five billion, four hundred forty million, three hundred forty-three thousand, six hundred thirty-two".