116566971 has 4 divisors (see below), whose sum is σ = 155422632. Its totient is φ = 77711312.

The previous prime is 116566969. The next prime is 116566973. The reversal of 116566971 is 179665611.

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

It is an interprime number because it is at equal distance from previous prime (116566969) and next prime (116566973).

It is a cyclic number.

It is not a de Polignac number, because 116566971 - 2¹ = 116566969 is a prime.

It is a super-2 number, since 2×116566971² = 27175717456229682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (116566973) 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, 19427826 + ... + 19427831.

It is an arithmetic number, because the mean of its divisors is an integer number (38855658).

Almost surely, 2^116566971 is an apocalyptic number.

116566971 is a deficient number, since it is larger than the sum of its proper divisors (38855661).

116566971 is an equidigital number, since it uses as much as digits as its factorization.

116566971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38855660.

The product of its digits is 68040, while the sum is 42.

The square root of 116566971 is about 10796.6184984003. The cubic root of 116566971 is about 488.4931789142.

The spelling of 116566971 in words is "one hundred sixteen million, five hundred sixty-six thousand, nine hundred seventy-one".