158728919667 has 16 divisors (see below), whose sum is σ = 218956366080. Its totient is φ = 102161040800.

The previous prime is 158728919663. The next prime is 158728919683. The reversal of 158728919667 is 766919827851.

It is a cyclic number.

It is not a de Polignac number, because 158728919667 - 2² = 158728919663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (158728919663) 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, 952192 + ... + 1106402.

It is an arithmetic number, because the mean of its divisors is an integer number (13684772880).

Almost surely, 2^158728919667 is an apocalyptic number.

158728919667 is a deficient number, since it is larger than the sum of its proper divisors (60227446413).

158728919667 is a wasteful number, since it uses less digits than its factorization.

158728919667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166074.

The product of its digits is 91445760, while the sum is 69.

The spelling of 158728919667 in words is "one hundred fifty-eight billion, seven hundred twenty-eight million, nine hundred nineteen thousand, six hundred sixty-seven".