63661146 has 16 divisors (see below), whose sum is σ = 127617600. Its totient is φ = 21171168.

The previous prime is 63661099. The next prime is 63661159. The reversal of 63661146 is 64116636.

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, 9451 + ... + 14718.

It is an arithmetic number, because the mean of its divisors is an integer number (7976100).

Almost surely, 2^63661146 is an apocalyptic number.

63661146 is an abundant number, since it is smaller than the sum of its proper divisors (63956454).

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

63661146 is a wasteful number, since it uses less digits than its factorization.

63661146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24613.

The product of its digits is 15552, while the sum is 33.

The square root of 63661146 is about 7978.7935178196. The cubic root of 63661146 is about 399.2928045901.

The spelling of 63661146 in words is "sixty-three million, six hundred sixty-one thousand, one hundred forty-six".