134329977586561 has 3 divisors (see below), whose sum is σ = 134329989176643. Its totient is φ = 134329965996480.

The previous prime is 134329977586529. The next prime is 134329977586583. The reversal of 134329977586561 is 165685779923431.

The square root of 134329977586561 is 11590081.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 113515578788161 + 20814398798400 = 10654369^2 + 4562280^2 .

It is not a de Polignac number, because 134329977586561 - 2⁵ = 134329977586529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134329971586561) by changing a digit.

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 in 2 ways as a sum of consecutive naturals, for example, 5795041 + ... + 17385121.

It is an arithmetic number, because the mean of its divisors is an integer number (44776663058881).

Almost surely, 2^{134329977586561} is an apocalyptic number.

134329977586561 is the 11590081-st square number.

134329977586561 is the 5795041-st centered octagonal number.

It is an amenable number.

134329977586561 is a deficient number, since it is larger than the sum of its proper divisors (11590082).

134329977586561 is an frugal number, since it uses more digits than its factorization.

134329977586561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23180162 (or 11590081 counting only the distinct ones).

The product of its digits is 2057529600, while the sum is 76.

The spelling of 134329977586561 in words is "one hundred thirty-four trillion, three hundred twenty-nine billion, nine hundred seventy-seven million, five hundred eighty-six thousand, five hundred sixty-one".