180915066 has 16 divisors (see below), whose sum is σ = 402033600. Its totient is φ = 60305004.

The previous prime is 180915047. The next prime is 180915073. The reversal of 180915066 is 660519081.

180915066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×180915066² = 65460522211568712, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 180915066.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1675086 + ... + 1675193.

It is an arithmetic number, because the mean of its divisors is an integer number (25127100).

Almost surely, 2^180915066 is an apocalyptic number.

180915066 is an abundant number, since it is smaller than the sum of its proper divisors (221118534).

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

180915066 is a wasteful number, since it uses less digits than its factorization.

180915066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3350290 (or 3350284 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 180915066 is about 13450.4671294346. The cubic root of 180915066 is about 565.5767895216.

The spelling of 180915066 in words is "one hundred eighty million, nine hundred fifteen thousand, sixty-six".