165932954240 has 32 divisors (see below), whose sum is σ = 396683470260. Its totient is φ = 66373181440.

The previous prime is 165932954167. The next prime is 165932954249. The reversal of 165932954240 is 42459239561.

It can be written as a sum of positive squares in 2 ways, for example, as 164595735616 + 1337218624 = 405704^2 + 36568^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (165932954249) 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, 129634481 + ... + 129635760.

Almost surely, 2^165932954240 is an apocalyptic number.

165932954240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165932954240 is an abundant number, since it is smaller than the sum of its proper divisors (230750516020).

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

165932954240 is an equidigital number, since it uses as much as digits as its factorization.

165932954240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259270260 (or 259270248 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 50.

The spelling of 165932954240 in words is "one hundred sixty-five billion, nine hundred thirty-two million, nine hundred fifty-four thousand, two hundred forty".