165701330 has 16 divisors (see below), whose sum is σ = 299764800. Its totient is φ = 65946672.

The previous prime is 165701321. The next prime is 165701351. The reversal of 165701330 is 33107561.

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 165701330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39644 + ... + 43623.

It is an arithmetic number, because the mean of its divisors is an integer number (18735300).

Almost surely, 2^165701330 is an apocalyptic number.

165701330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165701330 is a deficient number, since it is larger than the sum of its proper divisors (134063470).

165701330 is a wasteful number, since it uses less digits than its factorization.

165701330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83473.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 165701330 is about 12872.5028646336. The cubic root of 165701330 is about 549.2566597194.

Adding to 165701330 its reverse (33107561), we get a palindrome (198808891).

The spelling of 165701330 in words is "one hundred sixty-five million, seven hundred one thousand, three hundred thirty".