165948736 has 28 divisors (see below), whose sum is σ = 346638880. Its totient is φ = 78606720.

The previous prime is 165948719. The next prime is 165948763. The reversal of 165948736 is 637849561.

It is a self number, because there is not a number n which added to its sum of digits gives 165948736.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67020 + ... + 69451.

It is an arithmetic number, because the mean of its divisors is an integer number (12379960).

Almost surely, 2^165948736 is an apocalyptic number.

165948736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

165948736 is an abundant number, since it is smaller than the sum of its proper divisors (180690144).

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

165948736 is a wasteful number, since it uses less digits than its factorization.

165948736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136502 (or 136492 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 49.

The square root of 165948736 is about 12882.1091440804. The cubic root of 165948736 is about 549.5298858864.

The spelling of 165948736 in words is "one hundred sixty-five million, nine hundred forty-eight thousand, seven hundred thirty-six".