51142056120 has 48 divisors (see below), whose sum is σ = 166211683560. Its totient is φ = 13637881536.

The previous prime is 51142056107. The next prime is 51142056127. The reversal of 51142056120 is 2165024115.

51142056120 is a `hidden beast` number, since 5 + 1 + 1 + 42 + 0 + 5 + 612 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51142056127) 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 11 ways as a sum of consecutive naturals, for example, 71030274 + ... + 71030993.

Almost surely, 2^51142056120 is an apocalyptic number.

It is an amenable number.

51142056120 is an abundant number, since it is smaller than the sum of its proper divisors (115069627440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51142056120 is a wasteful number, since it uses less digits than its factorization.

51142056120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142061284 (or 142061277 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The spelling of 51142056120 in words is "fifty-one billion, one hundred forty-two million, fifty-six thousand, one hundred twenty".