2198063663 has 4 divisors (see below), whose sum is σ = 2212620528. Its totient is φ = 2183506800.

The previous prime is 2198063629. The next prime is 2198063687. The reversal of 2198063663 is 3663608912.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2198063663 - 2⁸ = 2198063407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198063863) 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, 7278206 + ... + 7278507.

It is an arithmetic number, because the mean of its divisors is an integer number (553155132).

Almost surely, 2^2198063663 is an apocalyptic number.

2198063663 is a deficient number, since it is larger than the sum of its proper divisors (14556865).

2198063663 is a wasteful number, since it uses less digits than its factorization.

2198063663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14556864.

The product of its (nonzero) digits is 279936, while the sum is 44.

The square root of 2198063663 is about 46883.5116325559. The cubic root of 2198063663 is about 1300.2097616156.

The spelling of 2198063663 in words is "two billion, one hundred ninety-eight million, sixty-three thousand, six hundred sixty-three".