216350001 has 32 divisors (see below), whose sum is σ = 367077120. Its totient is φ = 123368832.

The previous prime is 216349999. The next prime is 216350009. The reversal of 216350001 is 100053612.

216350001 is a `hidden beast` number, since 2 + 163 + 500 + 0 + 1 = 666.

It is not a de Polignac number, because 216350001 - 2¹ = 216349999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216350009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122541 + ... + 124293.

It is an arithmetic number, because the mean of its divisors is an integer number (11471160).

Almost surely, 2^216350001 is an apocalyptic number.

216350001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

216350001 is a deficient number, since it is larger than the sum of its proper divisors (150727119).

216350001 is a wasteful number, since it uses less digits than its factorization.

216350001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2422 (or 2416 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 216350001 is about 14708.8409128660. The cubic root of 216350001 is about 600.3239001164.

The spelling of 216350001 in words is "two hundred sixteen million, three hundred fifty thousand, one".