165180151806 has 16 divisors (see below), whose sum is σ = 349793262864. Its totient is φ = 51821224064.

The previous prime is 165180151793. The next prime is 165180151841. The reversal of 165180151806 is 608151081561.

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, 809706525 + ... + 809706728.

It is an arithmetic number, because the mean of its divisors is an integer number (21862078929).

Almost surely, 2^165180151806 is an apocalyptic number.

165180151806 is an abundant number, since it is smaller than the sum of its proper divisors (184613111058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165180151806 is a wasteful number, since it uses less digits than its factorization.

165180151806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619413275.

The product of its (nonzero) digits is 57600, while the sum is 42.

The spelling of 165180151806 in words is "one hundred sixty-five billion, one hundred eighty million, one hundred fifty-one thousand, eight hundred six".