165465552 has 60 divisors (see below), whose sum is σ = 497247936. Its totient is φ = 47275200.

The previous prime is 165465541. The next prime is 165465557. The reversal of 165465552 is 255564561.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 165465552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165465557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32824 + ... + 37527.

Almost surely, 2^165465552 is an apocalyptic number.

165465552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

165465552 is an abundant number, since it is smaller than the sum of its proper divisors (331782384).

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

165465552 is a wasteful number, since it uses less digits than its factorization.

165465552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70376 (or 70363 counting only the distinct ones).

The product of its digits is 180000, while the sum is 39.

The square root of 165465552 is about 12863.3414010513. The cubic root of 165465552 is about 548.9960218822.

Subtracting 165465552 from its reverse (255564561), we obtain a palindrome (90099009).

The spelling of 165465552 in words is "one hundred sixty-five million, four hundred sixty-five thousand, five hundred fifty-two".