63646440130134 has 24 divisors (see below), whose sum is σ = 137901991558032. Its totient is φ = 21215269077840.

The previous prime is 63646440130129. The next prime is 63646440130153. The reversal of 63646440130134 is 43103104464636.

63646440130134 is a `hidden beast` number, since 6 + 3 + 6 + 46 + 440 + 1 + 30 + 134 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 63646440130134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15714682 + ... + 19345389.

It is an arithmetic number, because the mean of its divisors is an integer number (5745916314918).

Almost surely, 2^{63646440130134} is an apocalyptic number.

63646440130134 is an abundant number, since it is smaller than the sum of its proper divisors (74255551427898).

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

63646440130134 is a wasteful number, since it uses less digits than its factorization.

63646440130134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35160932 (or 35160929 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 45.

The spelling of 63646440130134 in words is "sixty-three trillion, six hundred forty-six billion, four hundred forty million, one hundred thirty thousand, one hundred thirty-four".