65998106 has 8 divisors (see below), whose sum is σ = 99720180. Its totient is φ = 32758048.

The previous prime is 65998099. The next prime is 65998111. The reversal of 65998106 is 60189956.

It can be written as a sum of positive squares in 2 ways, for example, as 64947481 + 1050625 = 8059^2 + 1025^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120161 + ... + 120708.

Almost surely, 2^65998106 is an apocalyptic number.

65998106 is a deficient number, since it is larger than the sum of its proper divisors (33722074).

65998106 is a wasteful number, since it uses less digits than its factorization.

65998106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241008.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 65998106 is about 8123.9218361577. The cubic root of 65998106 is about 404.1201363138.

The spelling of 65998106 in words is "sixty-five million, nine hundred ninety-eight thousand, one hundred six".