98663676221 has 4 divisors (see below), whose sum is σ = 107633101344. Its totient is φ = 89694251100.

The previous prime is 98663676211. The next prime is 98663676229. The reversal of 98663676221 is 12267636689.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-98663676221 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 (98663676229) 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, 4484712545 + ... + 4484712566.

It is an arithmetic number, because the mean of its divisors is an integer number (26908275336).

Almost surely, 2^98663676221 is an apocalyptic number.

It is an amenable number.

98663676221 is a deficient number, since it is larger than the sum of its proper divisors (8969425123).

98663676221 is a wasteful number, since it uses less digits than its factorization.

98663676221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8969425122.

The product of its digits is 7838208, while the sum is 56.

The spelling of 98663676221 in words is "ninety-eight billion, six hundred sixty-three million, six hundred seventy-six thousand, two hundred twenty-one".