165118378 has 8 divisors (see below), whose sum is σ = 249459840. Its totient is φ = 81965100.

The previous prime is 165118339. The next prime is 165118423. The reversal of 165118378 is 873811561.

165118378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 165118378.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 296698 + ... + 297253.

It is an arithmetic number, because the mean of its divisors is an integer number (31182480).

Almost surely, 2^165118378 is an apocalyptic number.

165118378 is a deficient number, since it is larger than the sum of its proper divisors (84341462).

165118378 is a wasteful number, since it uses less digits than its factorization.

165118378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594092.

The product of its digits is 40320, while the sum is 40.

The square root of 165118378 is about 12849.8396098940. The cubic root of 165118378 is about 548.6117916510.

The spelling of 165118378 in words is "one hundred sixty-five million, one hundred eighteen thousand, three hundred seventy-eight".