165061501 has 8 divisors (see below), whose sum is σ = 187896384. Its totient is φ = 143531520.

The previous prime is 165061487. The next prime is 165061529. The reversal of 165061501 is 105160561.

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

It is not a de Polignac number, because 165061501 - 2⁵ = 165061469 is a prime.

It is a super-2 number, since 2×165061501² = 54490598224746002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165061571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325956 + ... + 326461.

It is an arithmetic number, because the mean of its divisors is an integer number (23487048).

Almost surely, 2^165061501 is an apocalyptic number.

165061501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

165061501 is a deficient number, since it is larger than the sum of its proper divisors (22834883).

165061501 is a wasteful number, since it uses less digits than its factorization.

165061501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652451.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 165061501 is about 12847.6262788112. The cubic root of 165061501 is about 548.5487924526.

The spelling of 165061501 in words is "one hundred sixty-five million, sixty-one thousand, five hundred one".