165606794 has 8 divisors (see below), whose sum is σ = 250306848. Its totient is φ = 82171180.

The previous prime is 165606787. The next prime is 165606871. The reversal of 165606794 is 497606561.

It is a happy number.

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

It is a super-2 number, since 2×165606794² = 54851220437916872, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 315782 + ... + 316305.

It is an arithmetic number, because the mean of its divisors is an integer number (31288356).

Almost surely, 2^165606794 is an apocalyptic number.

165606794 is a deficient number, since it is larger than the sum of its proper divisors (84700054).

165606794 is a wasteful number, since it uses less digits than its factorization.

165606794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632220.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 165606794 is about 12868.8303275783. The cubic root of 165606794 is about 549.1521857936.

The spelling of 165606794 in words is "one hundred sixty-five million, six hundred six thousand, seven hundred ninety-four".