66623060 has 24 divisors (see below), whose sum is σ = 159895680. Its totient is φ = 22842144.

The previous prime is 66623047. The next prime is 66623083. The reversal of 66623060 is 6032666.

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, 237800 + ... + 238079.

It is an arithmetic number, because the mean of its divisors is an integer number (6662320).

Almost surely, 2^66623060 is an apocalyptic number.

It is an amenable number.

66623060 is an abundant number, since it is smaller than the sum of its proper divisors (93272620).

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

66623060 is a wasteful number, since it uses less digits than its factorization.

66623060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475895 (or 475893 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 66623060 is about 8162.2950203971. The cubic root of 66623060 is about 405.3917055703.

The spelling of 66623060 in words is "sixty-six million, six hundred twenty-three thousand, sixty".