63661466 has 8 divisors (see below), whose sum is σ = 104173344. Its totient is φ = 28937020.

The previous prime is 63661463. The next prime is 63661483. The reversal of 63661466 is 66416636.

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

It is not an unprimeable number, because it can be changed into a prime (63661463) 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, 1446830 + ... + 1446873.

It is an arithmetic number, because the mean of its divisors is an integer number (13021668).

Almost surely, 2^63661466 is an apocalyptic number.

63661466 is a deficient number, since it is larger than the sum of its proper divisors (40511878).

63661466 is a wasteful number, since it uses less digits than its factorization.

63661466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2893716.

The product of its digits is 93312, while the sum is 38.

The square root of 63661466 is about 7978.8135709515. The cubic root of 63661466 is about 399.2934736193.

The spelling of 63661466 in words is "sixty-three million, six hundred sixty-one thousand, four hundred sixty-six".