63161280 has 336 divisors, whose sum is σ = 268492224. Its totient is φ = 13271040.

The previous prime is 63161269. The next prime is 63161297. The reversal of 63161280 is 8216136.

63161280 is a `hidden beast` number, since 631 + 6 + 1 + 28 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a zygodrome in base 2 and base 4.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 261960 + ... + 262200.

It is an arithmetic number, because the mean of its divisors is an integer number (799084).

Almost surely, 2^63161280 is an apocalyptic number.

63161280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63161280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134246112).

63161280 is an abundant number, since it is smaller than the sum of its proper divisors (205330944).

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

63161280 is a wasteful number, since it uses less digits than its factorization.

63161280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 63161280 is about 7947.4071243394. The cubic root of 63161280 is about 398.2449776700.

The spelling of 63161280 in words is "sixty-three million, one hundred sixty-one thousand, two hundred eighty".