156998678168 has 8 divisors (see below), whose sum is σ = 294372521580. Its totient is φ = 78499339080.

The previous prime is 156998678147. The next prime is 156998678209. The reversal of 156998678168 is 861876899651.

156998678168 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 156998678095 and 156998678104.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 9812417378 + ... + 9812417393.

Almost surely, 2^156998678168 is an apocalyptic number.

It is an amenable number.

156998678168 is a deficient number, since it is larger than the sum of its proper divisors (137373843412).

156998678168 is a wasteful number, since it uses less digits than its factorization.

156998678168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19624834777 (or 19624834773 counting only the distinct ones).

The product of its digits is 313528320, while the sum is 74.

The spelling of 156998678168 in words is "one hundred fifty-six billion, nine hundred ninety-eight million, six hundred seventy-eight thousand, one hundred sixty-eight".