160650021 has 16 divisors (see below), whose sum is σ = 250494464. Its totient is φ = 89664624.

The previous prime is 160650011. The next prime is 160650037. The reversal of 160650021 is 120056061.

It is a happy number.

It is not a de Polignac number, because 160650021 - 2⁹ = 160649509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 160650021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160650001) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 88051 + ... + 89856.

It is an arithmetic number, because the mean of its divisors is an integer number (15655904).

Almost surely, 2^160650021 is an apocalyptic number.

It is an amenable number.

160650021 is a deficient number, since it is larger than the sum of its proper divisors (89844443).

160650021 is a wasteful number, since it uses less digits than its factorization.

160650021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177960.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 160650021 is about 12674.7789329834. The cubic root of 160650021 is about 543.6177084959.

The spelling of 160650021 in words is "one hundred sixty million, six hundred fifty thousand, twenty-one".