63116654521 has 8 divisors (see below), whose sum is σ = 64486794240. Its totient is φ = 61747649568.

The previous prime is 63116654519. The next prime is 63116654569. The reversal of 63116654521 is 12545661136.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 63116654521 - 2¹ = 63116654519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63116654501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170761 + ... + 394198.

It is an arithmetic number, because the mean of its divisors is an integer number (8060849280).

Almost surely, 2^63116654521 is an apocalyptic number.

It is an amenable number.

63116654521 is a deficient number, since it is larger than the sum of its proper divisors (1370139719).

63116654521 is a wasteful number, since it uses less digits than its factorization.

63116654521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567383.

The product of its digits is 129600, while the sum is 40.

The spelling of 63116654521 in words is "sixty-three billion, one hundred sixteen million, six hundred fifty-four thousand, five hundred twenty-one".