65998822 has 8 divisors (see below), whose sum is σ = 103302576. Its totient is φ = 31564632.

The previous prime is 65998817. The next prime is 65998841. The reversal of 65998822 is 22889956.

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

It is a congruent number.

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, 717333 + ... + 717424.

It is an arithmetic number, because the mean of its divisors is an integer number (12912822).

Almost surely, 2^65998822 is an apocalyptic number.

65998822 is a deficient number, since it is larger than the sum of its proper divisors (37303754).

65998822 is a wasteful number, since it uses less digits than its factorization.

65998822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434782.

The product of its digits is 622080, while the sum is 49.

The square root of 65998822 is about 8123.9659034243. The cubic root of 65998822 is about 404.1215977142.

The spelling of 65998822 in words is "sixty-five million, nine hundred ninety-eight thousand, eight hundred twenty-two".