66954008 has 16 divisors (see below), whose sum is σ = 136951560. Its totient is φ = 30433600.

The previous prime is 66953993. The next prime is 66954029. The reversal of 66954008 is 80045966.

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, 380333 + ... + 380508.

Almost surely, 2^66954008 is an apocalyptic number.

It is an amenable number.

66954008 is an abundant number, since it is smaller than the sum of its proper divisors (69997552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66954008 is a wasteful number, since it uses less digits than its factorization.

66954008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760858 (or 760854 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 66954008 is about 8182.5428810364. The cubic root of 66954008 is about 406.0618540848.

The spelling of 66954008 in words is "sixty-six million, nine hundred fifty-four thousand, eight".