63266560 has 144 divisors (see below), whose sum is σ = 181310976. Its totient is φ = 20680704.

The previous prime is 63266551. The next prime is 63266569. The reversal of 63266560 is 6566236.

It is an interprime number because it is at equal distance from previous prime (63266551) and next prime (63266569).

It is a super-2 number, since 2×63266560² = 8005315228467200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63266569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205927 + ... + 206233.

It is an arithmetic number, because the mean of its divisors is an integer number (1259104).

Almost surely, 2^63266560 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 63266560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90655488).

63266560 is an abundant number, since it is smaller than the sum of its proper divisors (118044416).

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

63266560 is a wasteful number, since it uses less digits than its factorization.

63266560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358 (or 344 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 63266560 is about 7954.0279104363. The cubic root of 63266560 is about 398.4661255917.

The spelling of 63266560 in words is "sixty-three million, two hundred sixty-six thousand, five hundred sixty".