659161956 has 48 divisors (see below), whose sum is σ = 1595361600. Its totient is φ = 211651200.

The previous prime is 659161949. The next prime is 659161957.

659161956 is nontrivially palindromic in base 10.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (659161957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37495 + ... + 52193.

It is an arithmetic number, because the mean of its divisors is an integer number (33236700).

Almost surely, 2^659161956 is an apocalyptic number.

It is an amenable number.

659161956 is an abundant number, since it is smaller than the sum of its proper divisors (936199644).

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

659161956 is a wasteful number, since it uses less digits than its factorization.

659161956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14844 (or 14842 counting only the distinct ones).

The product of its digits is 437400, while the sum is 48.

The square root of 659161956 is about 25674.1495672203. The cubic root of 659161956 is about 870.2901027520.

The spelling of 659161956 in words is "six hundred fifty-nine million, one hundred sixty-one thousand, nine hundred fifty-six".