63066661 has 8 divisors (see below), whose sum is σ = 73436544. Its totient is φ = 53036880.

The previous prime is 63066649. The next prime is 63066691. The reversal of 63066661 is 16666036.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63066661 - 2⁵ = 63066629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63066691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84625 + ... + 85366.

It is an arithmetic number, because the mean of its divisors is an integer number (9179568).

Almost surely, 2^63066661 is an apocalyptic number.

It is an amenable number.

63066661 is a deficient number, since it is larger than the sum of its proper divisors (10369883).

63066661 is a wasteful number, since it uses less digits than its factorization.

63066661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170051.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 63066661 is about 7941.4520712525. The cubic root of 63066661 is about 398.0460141407.

The spelling of 63066661 in words is "sixty-three million, sixty-six thousand, six hundred sixty-one".