165151567 has 8 divisors (see below), whose sum is σ = 193348512. Its totient is φ = 138105600.

The previous prime is 165151559. The next prime is 165151573. The reversal of 165151567 is 765151561.

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

It is a cyclic number.

It is not a de Polignac number, because 165151567 - 2³ = 165151559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165151507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287434 + ... + 288007.

It is an arithmetic number, because the mean of its divisors is an integer number (24168564).

Almost surely, 2^165151567 is an apocalyptic number.

165151567 is a deficient number, since it is larger than the sum of its proper divisors (28196945).

165151567 is an equidigital number, since it uses as much as digits as its factorization.

165151567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575489.

The product of its digits is 31500, while the sum is 37.

The square root of 165151567 is about 12851.1309619037. The cubic root of 165151567 is about 548.6485464067.

The spelling of 165151567 in words is "one hundred sixty-five million, one hundred fifty-one thousand, five hundred sixty-seven".