116556645362321 has 4 divisors (see below), whose sum is σ = 116721041195700. Its totient is φ = 116392249528944.

The previous prime is 116556645362299. The next prime is 116556645362329. The reversal of 116556645362321 is 123263546655611.

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

It can be written as a sum of positive squares in 2 ways, for example, as 72906323790400 + 43650321571921 = 8538520^2 + 6606839^2 .

It is a cyclic number.

It is not a de Polignac number, because 116556645362321 - 2⁶ = 116556645362257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116556645362329) 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, 82197915626 + ... + 82197917043.

It is an arithmetic number, because the mean of its divisors is an integer number (29180260298925).

Almost surely, 2^{116556645362321} is an apocalyptic number.

It is an amenable number.

116556645362321 is a deficient number, since it is larger than the sum of its proper divisors (164395833379).

116556645362321 is an equidigital number, since it uses as much as digits as its factorization.

116556645362321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164395833378.

The product of its digits is 23328000, while the sum is 56.

The spelling of 116556645362321 in words is "one hundred sixteen trillion, five hundred fifty-six billion, six hundred forty-five million, three hundred sixty-two thousand, three hundred twenty-one".