158305869668 has 12 divisors (see below), whose sum is σ = 286588212540. Its totient is φ = 76423523232.

The previous prime is 158305869599. The next prime is 158305869719. The reversal of 158305869668 is 866968503851.

It can be written as a sum of positive squares in 2 ways, for example, as 32009503744 + 126296365924 = 178912^2 + 355382^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 682352771 + ... + 682353002.

It is an arithmetic number, because the mean of its divisors is an integer number (23882351045).

Almost surely, 2^158305869668 is an apocalyptic number.

It is an amenable number.

158305869668 is a deficient number, since it is larger than the sum of its proper divisors (128282342872).

158305869668 is a wasteful number, since it uses less digits than its factorization.

158305869668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364705806 (or 1364705804 counting only the distinct ones).

The product of its (nonzero) digits is 74649600, while the sum is 65.

The spelling of 158305869668 in words is "one hundred fifty-eight billion, three hundred five million, eight hundred sixty-nine thousand, six hundred sixty-eight".