157611065791 has 2 divisors, whose sum is σ = 157611065792. Its totient is φ = 157611065790.

The previous prime is 157611065767. The next prime is 157611065837. The reversal of 157611065791 is 197560116751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157611065791 - 2⁹ = 157611065279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157611065891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78805532895 + 78805532896.

It is an arithmetic number, because the mean of its divisors is an integer number (78805532896).

Almost surely, 2^157611065791 is an apocalyptic number.

157611065791 is a deficient number, since it is larger than the sum of its proper divisors (1).

157611065791 is an equidigital number, since it uses as much as digits as its factorization.

157611065791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 396900, while the sum is 49.

The spelling of 157611065791 in words is "one hundred fifty-seven billion, six hundred eleven million, sixty-five thousand, seven hundred ninety-one".