165302420 has 12 divisors (see below), whose sum is σ = 347135124. Its totient is φ = 66120960.

The previous prime is 165302411. The next prime is 165302429. The reversal of 165302420 is 24203561.

165302420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (165302411) and next prime (165302429).

It can be written as a sum of positive squares in 2 ways, for example, as 52475536 + 112826884 = 7244^2 + 10622^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165302429) 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, 4132541 + ... + 4132580.

It is an arithmetic number, because the mean of its divisors is an integer number (28927927).

Almost surely, 2^165302420 is an apocalyptic number.

165302420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165302420 is an abundant number, since it is smaller than the sum of its proper divisors (181832704).

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

165302420 is a wasteful number, since it uses less digits than its factorization.

165302420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8265130 (or 8265128 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 165302420 is about 12856.9988722096. The cubic root of 165302420 is about 548.8155447053.

Adding to 165302420 its reverse (24203561), we get a palindrome (189505981).

The spelling of 165302420 in words is "one hundred sixty-five million, three hundred two thousand, four hundred twenty".