66098812 has 24 divisors (see below), whose sum is σ = 124843376. Its totient is φ = 30440448.

The previous prime is 66098741. The next prime is 66098827. The reversal of 66098812 is 21889066.

It is a super-2 number, since 2×66098812² = 8738105895622688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28903 + ... + 31105.

Almost surely, 2^66098812 is an apocalyptic number.

It is an amenable number.

66098812 is a deficient number, since it is larger than the sum of its proper divisors (58744564).

66098812 is a wasteful number, since it uses less digits than its factorization.

66098812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2797 (or 2795 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 66098812 is about 8130.1175883255. The cubic root of 66098812 is about 404.3255797855.

The spelling of 66098812 in words is "sixty-six million, ninety-eight thousand, eight hundred twelve".