1161116425061 has 4 divisors (see below), whose sum is σ = 1163887586400. Its totient is φ = 1158345263724.

The previous prime is 1161116425057. The next prime is 1161116425097. The reversal of 1161116425061 is 1605246111611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1161116425061 - 2² = 1161116425057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161116428061) 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, 1385580041 + ... + 1385580878.

It is an arithmetic number, because the mean of its divisors is an integer number (290971896600).

Almost surely, 2^{1161116425061} is an apocalyptic number.

It is an amenable number.

1161116425061 is a deficient number, since it is larger than the sum of its proper divisors (2771161339).

1161116425061 is an equidigital number, since it uses as much as digits as its factorization.

1161116425061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2771161338.

The product of its (nonzero) digits is 8640, while the sum is 35.

The spelling of 1161116425061 in words is "one trillion, one hundred sixty-one billion, one hundred sixteen million, four hundred twenty-five thousand, sixty-one".