66582958 has 12 divisors (see below), whose sum is σ = 108148608. Its totient is φ = 30730440.

The previous prime is 66582917. The next prime is 66582979. The reversal of 66582958 is 85928566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 98158 + ... + 98833.

It is an arithmetic number, because the mean of its divisors is an integer number (9012384).

Almost surely, 2^66582958 is an apocalyptic number.

66582958 is a deficient number, since it is larger than the sum of its proper divisors (41565650).

66582958 is a wasteful number, since it uses less digits than its factorization.

66582958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197019 (or 197006 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 49.

The square root of 66582958 is about 8159.8381111392. The cubic root of 66582958 is about 405.3103509507.

The spelling of 66582958 in words is "sixty-six million, five hundred eighty-two thousand, nine hundred fifty-eight".