659622132 has 72 divisors (see below), whose sum is σ = 1811673864. Its totient is φ = 201148416.

The previous prime is 659622109. The next prime is 659622157. The reversal of 659622132 is 231226956.

It can be written as a sum of positive squares in 4 ways, for example, as 467856 + 659154276 = 684^2 + 25674^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 46648 + ... + 59120.

It is an arithmetic number, because the mean of its divisors is an integer number (25162137).

Almost surely, 2^659622132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 659622132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (905836932).

659622132 is an abundant number, since it is smaller than the sum of its proper divisors (1152051732).

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

659622132 is a wasteful number, since it uses less digits than its factorization.

659622132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12609 (or 12604 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 659622132 is about 25683.1098584264. The cubic root of 659622132 is about 870.4925787670.

The spelling of 659622132 in words is "six hundred fifty-nine million, six hundred twenty-two thousand, one hundred thirty-two".