63554405516 has 96 divisors (see below), whose sum is σ = 131725440000. Its totient is φ = 26815603584.

The previous prime is 63554405513. The next prime is 63554405543. The reversal of 63554405516 is 61550445536.

It is not an unprimeable number, because it can be changed into a prime (63554405513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32113415 + ... + 32115393.

It is an arithmetic number, because the mean of its divisors is an integer number (1372140000).

Almost surely, 2^63554405516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63554405516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65862720000).

63554405516 is an abundant number, since it is smaller than the sum of its proper divisors (68171034484).

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

63554405516 is a wasteful number, since it uses less digits than its factorization.

63554405516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2356 (or 2340 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 44.

The spelling of 63554405516 in words is "sixty-three billion, five hundred fifty-four million, four hundred five thousand, five hundred sixteen".