165332653 has 4 divisors (see below), whose sum is σ = 165378780. Its totient is φ = 165286528.

The previous prime is 165332627. The next prime is 165332689. The reversal of 165332653 is 356233561.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 133217764 + 32114889 = 11542^2 + 5667^2 .

It is a cyclic number.

It is not a de Polignac number, because 165332653 - 2⁵ = 165332621 is a prime.

It is a super-2 number, since 2×165332653² = 54669772296036818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165338653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17188 + ... + 25021.

It is an arithmetic number, because the mean of its divisors is an integer number (41344695).

Almost surely, 2^165332653 is an apocalyptic number.

It is an amenable number.

165332653 is a deficient number, since it is larger than the sum of its proper divisors (46127).

165332653 is an equidigital number, since it uses as much as digits as its factorization.

165332653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46126.

The product of its digits is 48600, while the sum is 34.

The square root of 165332653 is about 12858.1745593999. The cubic root of 165332653 is about 548.8490012207.

The spelling of 165332653 in words is "one hundred sixty-five million, three hundred thirty-two thousand, six hundred fifty-three".