211670216153 has 16 divisors (see below), whose sum is σ = 232292923200. Its totient is φ = 191277938880.

The previous prime is 211670216141. The next prime is 211670216209. The reversal of 211670216153 is 351612076112.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211670216153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211670210153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15957638 + ... + 15970896.

It is an arithmetic number, because the mean of its divisors is an integer number (14518307700).

Almost surely, 2^211670216153 is an apocalyptic number.

It is an amenable number.

211670216153 is a deficient number, since it is larger than the sum of its proper divisors (20622707047).

211670216153 is a wasteful number, since it uses less digits than its factorization.

211670216153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21832.

The product of its (nonzero) digits is 15120, while the sum is 35.

The spelling of 211670216153 in words is "two hundred eleven billion, six hundred seventy million, two hundred sixteen thousand, one hundred fifty-three".