66480060 has 24 divisors (see below), whose sum is σ = 186144336. Its totient is φ = 17728000.

The previous prime is 66480059. The next prime is 66480067. The reversal of 66480060 is 6008466.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66480067) 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, 553941 + ... + 554060.

It is an arithmetic number, because the mean of its divisors is an integer number (7756014).

Almost surely, 2^66480060 is an apocalyptic number.

66480060 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66480060 is an abundant number, since it is smaller than the sum of its proper divisors (119664276).

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

66480060 is a wasteful number, since it uses less digits than its factorization.

66480060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108013 (or 1108011 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 66480060 is about 8153.5305236443. The cubic root of 66480060 is about 405.1014530169.

The spelling of 66480060 in words is "sixty-six million, four hundred eighty thousand, sixty".