98666630399 has 4 divisors (see below), whose sum is σ = 101849424960. Its totient is φ = 95483835840.

The previous prime is 98666630383. The next prime is 98666630473. The reversal of 98666630399 is 99303666689.

It is a happy number.

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 98666630399 - 2⁴ = 98666630383 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 (98666630369) 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, 1591397234 + ... + 1591397295.

It is an arithmetic number, because the mean of its divisors is an integer number (25462356240).

Almost surely, 2^98666630399 is an apocalyptic number.

98666630399 is a deficient number, since it is larger than the sum of its proper divisors (3182794561).

98666630399 is a wasteful number, since it uses less digits than its factorization.

98666630399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3182794560.

The product of its (nonzero) digits is 68024448, while the sum is 65.

The spelling of 98666630399 in words is "ninety-eight billion, six hundred sixty-six million, six hundred thirty thousand, three hundred ninety-nine".