168720134149 has 8 divisors (see below), whose sum is σ = 192920757120. Its totient is φ = 144543947856.

The previous prime is 168720134137. The next prime is 168720134173. The reversal of 168720134149 is 941431027861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 168720134149 - 2¹³ = 168720125957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168720134099 and 168720134108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168729134149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6094369 + ... + 6121990.

It is an arithmetic number, because the mean of its divisors is an integer number (24115094640).

Almost surely, 2^168720134149 is an apocalyptic number.

It is an amenable number.

168720134149 is a deficient number, since it is larger than the sum of its proper divisors (24200622971).

168720134149 is a wasteful number, since it uses less digits than its factorization.

168720134149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12218339.

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 168720134149 in words is "one hundred sixty-eight billion, seven hundred twenty million, one hundred thirty-four thousand, one hundred forty-nine".