63686310160 has 80 divisors (see below), whose sum is σ = 161663760000. Its totient is φ = 23139717120.

The previous prime is 63686310137. The next prime is 63686310167. The reversal of 63686310160 is 6101368636.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×63686310160² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (63686310167) 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, 1070149 + ... + 1128091.

It is an arithmetic number, because the mean of its divisors is an integer number (2020797000).

Almost surely, 2^63686310160 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 63686310160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80831880000).

63686310160 is an abundant number, since it is smaller than the sum of its proper divisors (97977449840).

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

63686310160 is a wasteful number, since it uses less digits than its factorization.

63686310160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59216 (or 59210 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

Adding to 63686310160 its reverse (6101368636), we get a palindrome (69787678796).

The spelling of 63686310160 in words is "sixty-three billion, six hundred eighty-six million, three hundred ten thousand, one hundred sixty".