165452620 has 24 divisors (see below), whose sum is σ = 349017984. Its totient is φ = 65882496.

The previous prime is 165452563. The next prime is 165452621. The reversal of 165452620 is 26254561.

It is a super-4 number, since 4×165452620⁴ (a number of 34 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (165452621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14089 + ... + 23008.

It is an arithmetic number, because the mean of its divisors is an integer number (14542416).

Almost surely, 2^165452620 is an apocalyptic number.

165452620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165452620 is an abundant number, since it is smaller than the sum of its proper divisors (183565364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165452620 is a wasteful number, since it uses less digits than its factorization.

165452620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37329 (or 37327 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 165452620 is about 12862.8387224594. The cubic root of 165452620 is about 548.9817192042.

The spelling of 165452620 in words is "one hundred sixty-five million, four hundred fifty-two thousand, six hundred twenty".