2116358857 has 8 divisors (see below), whose sum is σ = 2145052800. Its totient is φ = 2087774304.

The previous prime is 2116358843. The next prime is 2116358879. The reversal of 2116358857 is 7588536112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2116358857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2116359857) 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, 11988 + ... + 66154.

It is an arithmetic number, because the mean of its divisors is an integer number (268131600).

Almost surely, 2^2116358857 is an apocalyptic number.

It is an amenable number.

2116358857 is a deficient number, since it is larger than the sum of its proper divisors (28693943).

2116358857 is an equidigital number, since it uses as much as digits as its factorization.

2116358857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54695.

The product of its digits is 403200, while the sum is 46.

The square root of 2116358857 is about 46003.9004542006. The cubic root of 2116358857 is about 1283.8957759448.

The spelling of 2116358857 in words is "two billion, one hundred sixteen million, three hundred fifty-eight thousand, eight hundred fifty-seven".