116366551 has 4 divisors (see below), whose sum is σ = 132990352. Its totient is φ = 99742752.

The previous prime is 116366543. The next prime is 116366563. The reversal of 116366551 is 155663611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 155663611 = 17 ⋅9156683.

It is a cyclic number.

It is not a de Polignac number, because 116366551 - 2³ = 116366543 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 (116366351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8311890 + ... + 8311903.

It is an arithmetic number, because the mean of its divisors is an integer number (33247588).

Almost surely, 2^116366551 is an apocalyptic number.

116366551 is a deficient number, since it is larger than the sum of its proper divisors (16623801).

116366551 is an equidigital number, since it uses as much as digits as its factorization.

116366551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16623800.

The product of its digits is 16200, while the sum is 34.

The square root of 116366551 is about 10787.3328955771. The cubic root of 116366551 is about 488.2130539176.

The spelling of 116366551 in words is "one hundred sixteen million, three hundred sixty-six thousand, five hundred fifty-one".