216245801 has 8 divisors (see below), whose sum is σ = 223436544. Its totient is φ = 209068560.

The previous prime is 216245791. The next prime is 216245803. The reversal of 216245801 is 108542612.

216245801 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 216245801 - 2⁶ = 216245737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216245803) 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, 37055 + ... + 42491.

It is an arithmetic number, because the mean of its divisors is an integer number (27929568).

Almost surely, 2^216245801 is an apocalyptic number.

It is an amenable number.

216245801 is a deficient number, since it is larger than the sum of its proper divisors (7190743).

216245801 is a wasteful number, since it uses less digits than its factorization.

216245801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6751.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 216245801 is about 14705.2983988765. The cubic root of 216245801 is about 600.2275072417.

The spelling of 216245801 in words is "two hundred sixteen million, two hundred forty-five thousand, eight hundred one".