165716040 has 96 divisors (see below), whose sum is σ = 578335680. Its totient is φ = 37876608.

The previous prime is 165716029. The next prime is 165716093. The reversal of 165716040 is 40617561.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 165715989 and 165716007.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8212 + ... + 19971.

It is an arithmetic number, because the mean of its divisors is an integer number (6024330).

Almost surely, 2^165716040 is an apocalyptic number.

165716040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165716040 is an abundant number, since it is smaller than the sum of its proper divisors (412619640).

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

165716040 is a wasteful number, since it uses less digits than its factorization.

165716040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28211 (or 28200 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 165716040 is about 12873.0742249084. The cubic root of 165716040 is about 549.2729125087.

The spelling of 165716040 in words is "one hundred sixty-five million, seven hundred sixteen thousand, forty".