145917317080 has 64 divisors (see below), whose sum is σ = 333065908800. Its totient is φ = 57522769920.

The previous prime is 145917317033. The next prime is 145917317129. The reversal of 145917317080 is 80713719541.

It is a self number, because there is not a number n which added to its sum of digits gives 145917317080.

It is a congruent number.

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, 8764444 + ... + 8781076.

It is an arithmetic number, because the mean of its divisors is an integer number (5204154825).

Almost surely, 2^145917317080 is an apocalyptic number.

145917317080 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 145917317080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166532954400).

145917317080 is an abundant number, since it is smaller than the sum of its proper divisors (187148591720).

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

145917317080 is a wasteful number, since it uses less digits than its factorization.

145917317080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19804 (or 19800 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 46.

The spelling of 145917317080 in words is "one hundred forty-five billion, nine hundred seventeen million, three hundred seventeen thousand, eighty".