166519416 has 32 divisors (see below), whose sum is σ = 475770240. Its totient is φ = 47576928.

The previous prime is 166519391. The next prime is 166519429. The reversal of 166519416 is 614915661.

It is a congruent number.

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, 495426 + ... + 495761.

It is an arithmetic number, because the mean of its divisors is an integer number (14867820).

Almost surely, 2^166519416 is an apocalyptic number.

It is an amenable number.

166519416 is an abundant number, since it is smaller than the sum of its proper divisors (309250824).

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

166519416 is a wasteful number, since it uses less digits than its factorization.

166519416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991203 (or 991199 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The square root of 166519416 is about 12904.2402333497. The cubic root of 166519416 is about 550.1590900662.

The spelling of 166519416 in words is "one hundred sixty-six million, five hundred nineteen thousand, four hundred sixteen".