216994594033 has 8 divisors (see below), whose sum is σ = 261046128320. Its totient is φ = 176206136400.

The previous prime is 216994594031. The next prime is 216994594043. The reversal of 216994594033 is 330495499612.

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

It is not a de Polignac number, because 216994594033 - 2¹ = 216994594031 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216994594031) 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, 815769018 + ... + 815769283.

It is an arithmetic number, because the mean of its divisors is an integer number (32630766040).

Almost surely, 2^216994594033 is an apocalyptic number.

It is an amenable number.

216994594033 is a deficient number, since it is larger than the sum of its proper divisors (44051534287).

216994594033 is a wasteful number, since it uses less digits than its factorization.

216994594033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631538327.

The product of its (nonzero) digits is 6298560, while the sum is 55.

The spelling of 216994594033 in words is "two hundred sixteen billion, nine hundred ninety-four million, five hundred ninety-four thousand, thirty-three".