145138166180 has 96 divisors (see below), whose sum is σ = 357882852096. Its totient is φ = 48398224896.

The previous prime is 145138166171. The next prime is 145138166197. The reversal of 145138166180 is 81661831541.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23394959 + ... + 23401161.

It is an arithmetic number, because the mean of its divisors is an integer number (3727946376).

Almost surely, 2^145138166180 is an apocalyptic number.

145138166180 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 145138166180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178941426048).

145138166180 is an abundant number, since it is smaller than the sum of its proper divisors (212744685916).

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

145138166180 is a wasteful number, since it uses less digits than its factorization.

145138166180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10773 (or 10771 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 44.

The spelling of 145138166180 in words is "one hundred forty-five billion, one hundred thirty-eight million, one hundred sixty-six thousand, one hundred eighty".