66500832 has 24 divisors (see below), whose sum is σ = 174564936. Its totient is φ = 22166912.

The previous prime is 66500831. The next prime is 66500851. The reversal of 66500832 is 23800566.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 66500832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66500831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346263 + ... + 346454.

It is an arithmetic number, because the mean of its divisors is an integer number (7273539).

Almost surely, 2^66500832 is an apocalyptic number.

It is an amenable number.

66500832 is an abundant number, since it is smaller than the sum of its proper divisors (108064104).

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

66500832 is a wasteful number, since it uses less digits than its factorization.

66500832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692730 (or 692722 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 66500832 is about 8154.8042281835. The cubic root of 66500832 is about 405.1436405597.

The spelling of 66500832 in words is "sixty-six million, five hundred thousand, eight hundred thirty-two".