198336653222401 has 4 divisors (see below), whose sum is σ = 200847243769600. Its totient is φ = 195826062675204.

The previous prime is 198336653222347. The next prime is 198336653222431. The reversal of 198336653222401 is 104222356633891.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 198336653222401 - 2⁷ = 198336653222273 is a prime.

It is a super-2 number, since 2×198336653222401² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198336653222431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1255295273481 + ... + 1255295273638.

It is an arithmetic number, because the mean of its divisors is an integer number (50211810942400).

Almost surely, 2^{198336653222401} is an apocalyptic number.

It is an amenable number.

198336653222401 is a deficient number, since it is larger than the sum of its proper divisors (2510590547199).

198336653222401 is an equidigital number, since it uses as much as digits as its factorization.

198336653222401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510590547198.

The product of its (nonzero) digits is 11197440, while the sum is 55.

The spelling of 198336653222401 in words is "one hundred ninety-eight trillion, three hundred thirty-six billion, six hundred fifty-three million, two hundred twenty-two thousand, four hundred one".