51082320157 has 8 divisors (see below), whose sum is σ = 55732592160. Its totient is φ = 46433118960.

The previous prime is 51082320109. The next prime is 51082320197. The reversal of 51082320157 is 75102328015.

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

It is a cyclic number.

It is not a de Polignac number, because 51082320157 - 2¹¹ = 51082318109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51082320197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166278 + ... + 360295.

It is an arithmetic number, because the mean of its divisors is an integer number (6966574020).

Almost surely, 2^51082320157 is an apocalyptic number.

It is an amenable number.

51082320157 is a deficient number, since it is larger than the sum of its proper divisors (4650272003).

51082320157 is a wasteful number, since it uses less digits than its factorization.

51082320157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535403.

The product of its (nonzero) digits is 16800, while the sum is 34.

The spelling of 51082320157 in words is "fifty-one billion, eighty-two million, three hundred twenty thousand, one hundred fifty-seven".