165550798 has 16 divisors (see below), whose sum is σ = 283968000. Its totient is φ = 70908696.

The previous prime is 165550789. The next prime is 165550823. The reversal of 165550798 is 897055561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40015 + ... + 43957.

It is an arithmetic number, because the mean of its divisors is an integer number (17748000).

Almost surely, 2^165550798 is an apocalyptic number.

165550798 is a deficient number, since it is larger than the sum of its proper divisors (118417202).

165550798 is a wasteful number, since it uses less digits than its factorization.

165550798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6951.

The product of its (nonzero) digits is 378000, while the sum is 46.

The square root of 165550798 is about 12866.6544991307. The cubic root of 165550798 is about 549.0902845645.

The spelling of 165550798 in words is "one hundred sixty-five million, five hundred fifty thousand, seven hundred ninety-eight".