161166241400113 has 4 divisors (see below), whose sum is σ = 161474398649968. Its totient is φ = 160858084150260.

The previous prime is 161166241400107. The next prime is 161166241400147. The reversal of 161166241400113 is 311004142661161.

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 a de Polignac number, because none of the positive numbers 2^k-161166241400113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161166241409113) 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, 154078624143 + ... + 154078625188.

It is an arithmetic number, because the mean of its divisors is an integer number (40368599662492).

Almost surely, 2^{161166241400113} is an apocalyptic number.

It is an amenable number.

161166241400113 is a deficient number, since it is larger than the sum of its proper divisors (308157249855).

161166241400113 is an equidigital number, since it uses as much as digits as its factorization.

161166241400113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308157249854.

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 161166241400113 in words is "one hundred sixty-one trillion, one hundred sixty-six billion, two hundred forty-one million, four hundred thousand, one hundred thirteen".