165162501 has 24 divisors (see below), whose sum is σ = 273049920. Its totient is φ = 94239936.

The previous prime is 165162449. The next prime is 165162509. The reversal of 165162501 is 105261561.

It is a happy number.

165162501 is a `hidden beast` number, since 1 + 651 + 6 + 2 + 5 + 0 + 1 = 666.

It is not a de Polignac number, because 165162501 - 2¹³ = 165154309 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165162509) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54145 + ... + 57113.

It is an arithmetic number, because the mean of its divisors is an integer number (11377080).

Almost surely, 2^165162501 is an apocalyptic number.

It is an amenable number.

165162501 is a deficient number, since it is larger than the sum of its proper divisors (107887419).

165162501 is a wasteful number, since it uses less digits than its factorization.

165162501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3865 (or 3862 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 165162501 is about 12851.5563648922. The cubic root of 165162501 is about 548.6606540541.

The spelling of 165162501 in words is "one hundred sixty-five million, one hundred sixty-two thousand, five hundred one".