134163968656 has 15 divisors (see below), whose sum is σ = 259945528003. Its totient is φ = 67081251760.

The previous prime is 134163968651. The next prime is 134163968717. The reversal of 134163968656 is 656869361431.

The square root of 134163968656 is 366284.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 134163968656.

It is not an unprimeable number, because it can be changed into a prime (134163968651) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1419351 + ... + 1510921.

Almost surely, 2^134163968656 is an apocalyptic number.

134163968656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

134163968656 is the 366284-th square number.

It is an amenable number.

134163968656 is a deficient number, since it is larger than the sum of its proper divisors (125781559347).

134163968656 is an frugal number, since it uses more digits than its factorization.

134163968656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183150 (or 91573 counting only the distinct ones).

The product of its digits is 16796160, while the sum is 58.

The spelling of 134163968656 in words is "one hundred thirty-four billion, one hundred sixty-three million, nine hundred sixty-eight thousand, six hundred fifty-six".