165935061 has 10 divisors (see below), whose sum is σ = 247878422. Its totient is φ = 110623320.

The previous prime is 165935057. The next prime is 165935089. The reversal of 165935061 is 160539561.

165935061 is a `hidden beast` number, since 1 + 6 + 593 + 5 + 0 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 164480625 + 1454436 = 12825^2 + 1206^2 .

It is not a de Polignac number, because 165935061 - 2² = 165935057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165235061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1024210 + ... + 1024371.

Almost surely, 2^165935061 is an apocalyptic number.

It is an amenable number.

165935061 is a deficient number, since it is larger than the sum of its proper divisors (81943361).

165935061 is an equidigital number, since it uses as much as digits as its factorization.

165935061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2048593 (or 2048584 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 165935061 is about 12881.5783582603. The cubic root of 165935061 is about 549.5147908078.

The spelling of 165935061 in words is "one hundred sixty-five million, nine hundred thirty-five thousand, sixty-one".