166240264 has 8 divisors (see below), whose sum is σ = 311700510. Its totient is φ = 83120128.

The previous prime is 166240231. The next prime is 166240301. The reversal of 166240264 is 462042661.

It can be written as a sum of positive squares in only one way, i.e., 149084100 + 17156164 = 12210^2 + 4142^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10390009 + ... + 10390024.

Almost surely, 2^166240264 is an apocalyptic number.

It is an amenable number.

166240264 is a deficient number, since it is larger than the sum of its proper divisors (145460246).

166240264 is a wasteful number, since it uses less digits than its factorization.

166240264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20780039 (or 20780035 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 166240264 is about 12893.4194068137. The cubic root of 166240264 is about 549.8514904820.

The spelling of 166240264 in words is "one hundred sixty-six million, two hundred forty thousand, two hundred sixty-four".