2146159656 has 48 divisors (see below), whose sum is σ = 5816346900. Its totient is φ = 714915072.

The previous prime is 2146159651. The next prime is 2146159709. The reversal of 2146159656 is 6569516412.

2146159656 is a `hidden beast` number, since 2 + 1 + 4 + 6 + 1 + 596 + 56 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2140542756 + 5616900 = 46266^2 + 2370^2 .

It is a super-3 number, since 3×2146159656³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2146159651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110310 + ... + 128298.

Almost surely, 2^2146159656 is an apocalyptic number.

It is an amenable number.

2146159656 is an abundant number, since it is smaller than the sum of its proper divisors (3670187244).

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

2146159656 is a wasteful number, since it uses less digits than its factorization.

2146159656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19658 (or 19651 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 2146159656 is about 46326.6624742167. The cubic root of 2146159656 is about 1289.8939591940.

The spelling of 2146159656 in words is "two billion, one hundred forty-six million, one hundred fifty-nine thousand, six hundred fifty-six".