218898201601 has 8 divisors (see below), whose sum is σ = 230423619680. Its totient is φ = 207373229568.

The previous prime is 218898201581. The next prime is 218898201629. The reversal of 218898201601 is 106102898812.

It is a happy number.

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 218898201601 - 2²⁹ = 218361330689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (218898201661) 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, 1473985 + ... + 1615681.

It is an arithmetic number, because the mean of its divisors is an integer number (28802952460).

Almost surely, 2^218898201601 is an apocalyptic number.

It is an amenable number.

218898201601 is a deficient number, since it is larger than the sum of its proper divisors (11525418079).

218898201601 is a wasteful number, since it uses less digits than its factorization.

218898201601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223023.

The product of its (nonzero) digits is 110592, while the sum is 46.

The spelling of 218898201601 in words is "two hundred eighteen billion, eight hundred ninety-eight million, two hundred one thousand, six hundred one".