116681601 has 4 divisors (see below), whose sum is σ = 155575472. Its totient is φ = 77787732.

The previous prime is 116681573. The next prime is 116681651. The reversal of 116681601 is 106186611.

It is a happy number.

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 not a de Polignac number, because 116681601 - 2¹⁹ = 116157313 is a prime.

It is a super-2 number, since 2×116681601² = 27229192023846402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116681651) 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, 19446931 + ... + 19446936.

It is an arithmetic number, because the mean of its divisors is an integer number (38893868).

Almost surely, 2^116681601 is an apocalyptic number.

It is an amenable number.

116681601 is a deficient number, since it is larger than the sum of its proper divisors (38893871).

116681601 is an equidigital number, since it uses as much as digits as its factorization.

116681601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38893870.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 116681601 is about 10801.9258005228. The cubic root of 116681601 is about 488.6532517818.

The spelling of 116681601 in words is "one hundred sixteen million, six hundred eighty-one thousand, six hundred one".