166648782 has 16 divisors (see below), whose sum is σ = 333435600. Its totient is φ = 55526592.

The previous prime is 166648771. The next prime is 166648787. The reversal of 166648782 is 287846661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166648787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16668 + ... + 24720.

It is an arithmetic number, because the mean of its divisors is an integer number (20839725).

Almost surely, 2^166648782 is an apocalyptic number.

166648782 is an abundant number, since it is smaller than the sum of its proper divisors (166786818).

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

166648782 is a wasteful number, since it uses less digits than its factorization.

166648782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11507.

The product of its digits is 774144, while the sum is 48.

The square root of 166648782 is about 12909.2517986133. The cubic root of 166648782 is about 550.3015228222.

The spelling of 166648782 in words is "one hundred sixty-six million, six hundred forty-eight thousand, seven hundred eighty-two".