116581075630571 has 4 divisors (see below), whose sum is σ = 116927013540792. Its totient is φ = 116235137720352.

The previous prime is 116581075630549. The next prime is 116581075630577. The reversal of 116581075630571 is 175036570185611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 116581075630571 - 2¹⁰ = 116581075629547 is a prime.

It is a super-2 number, since 2×116581075630571² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116581075630577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172968954605 + ... + 172968955278.

It is an arithmetic number, because the mean of its divisors is an integer number (29231753385198).

Almost surely, 2^{116581075630571} is an apocalyptic number.

116581075630571 is a deficient number, since it is larger than the sum of its proper divisors (345937910221).

116581075630571 is an equidigital number, since it uses as much as digits as its factorization.

116581075630571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345937910220.

The product of its (nonzero) digits is 5292000, while the sum is 56.

The spelling of 116581075630571 in words is "one hundred sixteen trillion, five hundred eighty-one billion, seventy-five million, six hundred thirty thousand, five hundred seventy-one".