166107838 has 16 divisors (see below), whose sum is σ = 269382960. Its totient is φ = 76363776.

The previous prime is 166107829. The next prime is 166107847. The reversal of 166107838 is 838701661.

It is an interprime number because it is at equal distance from previous prime (166107829) and next prime (166107847).

It is a self number, because there is not a number n which added to its sum of digits gives 166107838.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5748 + ... + 19111.

It is an arithmetic number, because the mean of its divisors is an integer number (16836435).

Almost surely, 2^166107838 is an apocalyptic number.

166107838 is a deficient number, since it is larger than the sum of its proper divisors (103275122).

166107838 is a wasteful number, since it uses less digits than its factorization.

166107838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25131.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 166107838 is about 12888.2829733056. The cubic root of 166107838 is about 549.7054488936.

The spelling of 166107838 in words is "one hundred sixty-six million, one hundred seven thousand, eight hundred thirty-eight".