166869452 has 6 divisors (see below), whose sum is σ = 292021548. Its totient is φ = 83434724.

The previous prime is 166869449. The next prime is 166869481. The reversal of 166869452 is 254968661.

It is a junction number, because it is equal to n+sod(n) for n = 166869397 and 166869406.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20858678 + ... + 20858685.

It is an arithmetic number, because the mean of its divisors is an integer number (48670258).

Almost surely, 2^166869452 is an apocalyptic number.

It is an amenable number.

166869452 is a deficient number, since it is larger than the sum of its proper divisors (125152096).

166869452 is a wasteful number, since it uses less digits than its factorization.

166869452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41717367 (or 41717365 counting only the distinct ones).

The product of its digits is 622080, while the sum is 47.

The square root of 166869452 is about 12917.7959420328. The cubic root of 166869452 is about 550.5443118285.

The spelling of 166869452 in words is "one hundred sixty-six million, eight hundred sixty-nine thousand, four hundred fifty-two".