165466138 has 8 divisors (see below), whose sum is σ = 249077088. Its totient is φ = 82440444.

The previous prime is 165466129. The next prime is 165466177. The reversal of 165466138 is 831664561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 165466138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145606 + ... + 146737.

It is an arithmetic number, because the mean of its divisors is an integer number (31134636).

Almost surely, 2^165466138 is an apocalyptic number.

165466138 is a deficient number, since it is larger than the sum of its proper divisors (83610950).

165466138 is a wasteful number, since it uses less digits than its factorization.

165466138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292628.

The product of its digits is 103680, while the sum is 40.

The square root of 165466138 is about 12863.3641789386. The cubic root of 165466138 is about 548.9966699754.

The spelling of 165466138 in words is "one hundred sixty-five million, four hundred sixty-six thousand, one hundred thirty-eight".