165151510650165 has 16 divisors (see below), whose sum is σ = 284568756812928. Its totient is φ = 81305359089216.

The previous prime is 165151510650109. The next prime is 165151510650289. The reversal of 165151510650165 is 561056015151561.

It is not a de Polignac number, because 165151510650165 - 2²¹ = 165151508553013 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 423465411729 + ... + 423465412118.

It is an arithmetic number, because the mean of its divisors is an integer number (17785547300808).

Almost surely, 2^{165151510650165} is an apocalyptic number.

165151510650165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165151510650165 is a deficient number, since it is larger than the sum of its proper divisors (119417246162763).

165151510650165 is a wasteful number, since it uses less digits than its factorization.

165151510650165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846930823868.

The product of its (nonzero) digits is 675000, while the sum is 48.

The spelling of 165151510650165 in words is "one hundred sixty-five trillion, one hundred fifty-one billion, five hundred ten million, six hundred fifty thousand, one hundred sixty-five".