57156061147 has 2 divisors, whose sum is σ = 57156061148. Its totient is φ = 57156061146.

The previous prime is 57156061139. The next prime is 57156061153. The reversal of 57156061147 is 74116065175.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57156061147 - 2³ = 57156061139 is a prime.

It is not a weakly prime, because it can be changed into another prime (57156067147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28578030573 + 28578030574.

It is an arithmetic number, because the mean of its divisors is an integer number (28578030574).

Almost surely, 2^57156061147 is an apocalyptic number.

57156061147 is a deficient number, since it is larger than the sum of its proper divisors (1).

57156061147 is an equidigital number, since it uses as much as digits as its factorization.

57156061147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 176400, while the sum is 43.

The spelling of 57156061147 in words is "fifty-seven billion, one hundred fifty-six million, sixty-one thousand, one hundred forty-seven".