61160142577591 has 2 divisors, whose sum is σ = 61160142577592. Its totient is φ = 61160142577590.

The previous prime is 61160142577549. The next prime is 61160142577613. The reversal of 61160142577591 is 19577524106116.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61160142577591 - 2¹⁷ = 61160142446519 is a prime.

It is a super-2 number, since 2×61160142577591² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61160142577991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30580071288795 + 30580071288796.

It is an arithmetic number, because the mean of its divisors is an integer number (30580071288796).

Almost surely, 2^{61160142577591} is an apocalyptic number.

61160142577591 is a deficient number, since it is larger than the sum of its proper divisors (1).

61160142577591 is an equidigital number, since it uses as much as digits as its factorization.

61160142577591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3175200, while the sum is 55.

The spelling of 61160142577591 in words is "sixty-one trillion, one hundred sixty billion, one hundred forty-two million, five hundred seventy-seven thousand, five hundred ninety-one".