165263330 has 16 divisors (see below), whose sum is σ = 313130880. Its totient is φ = 62626032.

The previous prime is 165263321. The next prime is 165263347. The reversal of 165263330 is 33362561.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 165263293 and 165263302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434714 + ... + 435093.

It is an arithmetic number, because the mean of its divisors is an integer number (19570680).

Almost surely, 2^165263330 is an apocalyptic number.

165263330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165263330 is a deficient number, since it is larger than the sum of its proper divisors (147867550).

165263330 is a wasteful number, since it uses less digits than its factorization.

165263330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869833.

The product of its (nonzero) digits is 9720, while the sum is 29.

The square root of 165263330 is about 12855.4785986365. The cubic root of 165263330 is about 548.7722807875.

The spelling of 165263330 in words is "one hundred sixty-five million, two hundred sixty-three thousand, three hundred thirty".