159968516 has 6 divisors (see below), whose sum is σ = 279944910. Its totient is φ = 79984256.

The previous prime is 159968491. The next prime is 159968537. The reversal of 159968516 is 615869951.

It can be written as a sum of positive squares in only one way, i.e., 159769600 + 198916 = 12640^2 + 446^2 .

It is a super-2 number, since 2×159968516² = 51179852222484512, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19996061 + ... + 19996068.

It is an arithmetic number, because the mean of its divisors is an integer number (46657485).

Almost surely, 2^159968516 is an apocalyptic number.

It is an amenable number.

159968516 is a deficient number, since it is larger than the sum of its proper divisors (119976394).

159968516 is a wasteful number, since it uses less digits than its factorization.

159968516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39992133 (or 39992131 counting only the distinct ones).

The product of its digits is 583200, while the sum is 50.

The square root of 159968516 is about 12647.8660650720. The cubic root of 159968516 is about 542.8479123480.

The spelling of 159968516 in words is "one hundred fifty-nine million, nine hundred sixty-eight thousand, five hundred sixteen".