166265648 has 20 divisors (see below), whose sum is σ = 332532288. Its totient is φ = 80450880.

The previous prime is 166265641. The next prime is 166265651. The reversal of 166265648 is 846562661.

166265648 is an admirable number.

It is a super-3 number, since 3×166265648³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 166265599 and 166265608.

It is not an unprimeable number, because it can be changed into a prime (166265641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167111 + ... + 168102.

Almost surely, 2^166265648 is an apocalyptic number.

It is an amenable number.

166265648 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

166265648 is a wasteful number, since it uses less digits than its factorization.

166265648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335252 (or 335246 counting only the distinct ones).

The product of its digits is 414720, while the sum is 44.

The square root of 166265648 is about 12894.4037473627. The cubic root of 166265648 is about 549.8794755191.

The spelling of 166265648 in words is "one hundred sixty-six million, two hundred sixty-five thousand, six hundred forty-eight".