217352152106 has 32 divisors (see below), whose sum is σ = 335938405968. Its totient is φ = 105422054400.

The previous prime is 217352152103. The next prime is 217352152109. The reversal of 217352152106 is 601251253712.

It is an interprime number because it is at equal distance from previous prime (217352152103) and next prime (217352152109).

It can be written as a sum of positive squares in 8 ways, for example, as 184912900225 + 32439251881 = 430015^2 + 180109^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (217352152103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7833650 + ... + 7861346.

Almost surely, 2^217352152106 is an apocalyptic number.

217352152106 is a deficient number, since it is larger than the sum of its proper divisors (118586253862).

217352152106 is a wasteful number, since it uses less digits than its factorization.

217352152106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28586.

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 217352152106 in words is "two hundred seventeen billion, three hundred fifty-two million, one hundred fifty-two thousand, one hundred six".