63660494 has 8 divisors (see below), whose sum is σ = 95541768. Its totient is φ = 31813240.

The previous prime is 63660449. The next prime is 63660497. The reversal of 63660494 is 49406636.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63660497) 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, 3152 + ... + 11715.

It is an arithmetic number, because the mean of its divisors is an integer number (11942721).

Almost surely, 2^63660494 is an apocalyptic number.

63660494 is a deficient number, since it is larger than the sum of its proper divisors (31881274).

63660494 is a wasteful number, since it uses less digits than its factorization.

63660494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17010.

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

The square root of 63660494 is about 7978.7526594074. The cubic root of 63660494 is about 399.2914414364.

The spelling of 63660494 in words is "sixty-three million, six hundred sixty thousand, four hundred ninety-four".