63641616354 has 32 divisors (see below), whose sum is σ = 147574765440. Its totient is φ = 20291529456.

The previous prime is 63641616343. The next prime is 63641616359. The reversal of 63641616354 is 45361614636.

63641616354 is a `hidden beast` number, since 6 + 3 + 6 + 4 + 1 + 6 + 1 + 635 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (63641616359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25619377 + ... + 25621860.

It is an arithmetic number, because the mean of its divisors is an integer number (4611711420).

Almost surely, 2^63641616354 is an apocalyptic number.

63641616354 is an abundant number, since it is smaller than the sum of its proper divisors (83933149086).

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

63641616354 is a wasteful number, since it uses less digits than its factorization.

63641616354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51241271 (or 51241265 counting only the distinct ones).

The product of its digits is 933120, while the sum is 45.

The spelling of 63641616354 in words is "sixty-three billion, six hundred forty-one million, six hundred sixteen thousand, three hundred fifty-four".