162206640 has 60 divisors (see below), whose sum is σ = 544746384. Its totient is φ = 43254912.

The previous prime is 162206623. The next prime is 162206713. The reversal of 162206640 is 46602261.

It is a happy number.

162206640 is a `hidden beast` number, since 16 + 2 + 2 + 0 + 6 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

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 11 ways as a sum of consecutive naturals, for example, 111924 + ... + 113363.

Almost surely, 2^162206640 is an apocalyptic number.

162206640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162206640 is an abundant number, since it is smaller than the sum of its proper divisors (382539744).

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

162206640 is a wasteful number, since it uses less digits than its factorization.

162206640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225306 (or 225297 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 162206640 is about 12736.0370602476. The cubic root of 162206640 is about 545.3678631951.

The spelling of 162206640 in words is "one hundred sixty-two million, two hundred six thousand, six hundred forty".