66260480 has 160 divisors (see below), whose sum is σ = 187675488. Its totient is φ = 22118400.

The previous prime is 66260479. The next prime is 66260497. The reversal of 66260480 is 8406266.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365990 + ... + 366170.

Almost surely, 2^66260480 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 66260480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93837744).

66260480 is an abundant number, since it is smaller than the sum of its proper divisors (121415008).

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

66260480 is a wasteful number, since it uses less digits than its factorization.

66260480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 66260480 is about 8140.0540538746. The cubic root of 66260480 is about 404.6549517558.

The spelling of 66260480 in words is "sixty-six million, two hundred sixty thousand, four hundred eighty".