216370066751 has 8 divisors (see below), whose sum is σ = 219537369600. Its totient is φ = 213225632928.

The previous prime is 216370066747. The next prime is 216370066771. The reversal of 216370066751 is 157660073612.

216370066751 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 216370066751 - 2² = 216370066747 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 (216370066771) 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 7 ways as a sum of consecutive naturals, for example, 5698196 + ... + 5736041.

It is an arithmetic number, because the mean of its divisors is an integer number (27442171200).

Almost surely, 2^216370066751 is an apocalyptic number.

216370066751 is a deficient number, since it is larger than the sum of its proper divisors (3167302849).

216370066751 is a wasteful number, since it uses less digits than its factorization.

216370066751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11434513.

The product of its (nonzero) digits is 317520, while the sum is 44.

The spelling of 216370066751 in words is "two hundred sixteen billion, three hundred seventy million, sixty-six thousand, seven hundred fifty-one".