116564161 has 8 divisors (see below), whose sum is σ = 139008384. Its totient is φ = 95568000.

The previous prime is 116564143. The next prime is 116564177. The reversal of 116564161 is 161465611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 116564161 - 2²¹ = 114467009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116564131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361840 + ... + 362161.

It is an arithmetic number, because the mean of its divisors is an integer number (17376048).

Almost surely, 2^116564161 is an apocalyptic number.

It is an amenable number.

116564161 is a deficient number, since it is larger than the sum of its proper divisors (22444223).

116564161 is an equidigital number, since it uses as much as digits as its factorization.

116564161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724031.

The product of its digits is 4320, while the sum is 31.

The square root of 116564161 is about 10796.4883642785. The cubic root of 116564161 is about 488.4892536260.

The spelling of 116564161 in words is "one hundred sixteen million, five hundred sixty-four thousand, one hundred sixty-one".