165052601 has 16 divisors (see below), whose sum is σ = 205411200. Its totient is φ = 129403008.

The previous prime is 165052561. The next prime is 165052607. The reversal of 165052601 is 106250561.

It is not a de Polignac number, because 165052601 - 2¹⁰ = 165051577 is a prime.

It is a super-2 number, since 2×165052601² = 54484722193730402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165052607) 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 15 ways as a sum of consecutive naturals, for example, 17540 + ... + 25253.

It is an arithmetic number, because the mean of its divisors is an integer number (12838200).

Almost surely, 2^165052601 is an apocalyptic number.

It is an amenable number.

165052601 is a deficient number, since it is larger than the sum of its proper divisors (40358599).

165052601 is a wasteful number, since it uses less digits than its factorization.

165052601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42848.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 165052601 is about 12847.2799066573. The cubic root of 165052601 is about 548.5389331537.

The spelling of 165052601 in words is "one hundred sixty-five million, fifty-two thousand, six hundred one".