66524460 has 48 divisors (see below), whose sum is σ = 187651296. Its totient is φ = 17608192.

The previous prime is 66524459. The next prime is 66524461. The reversal of 66524460 is 6442566.

It is an interprime number because it is at equal distance from previous prime (66524459) and next prime (66524461).

It is not an unprimeable number, because it can be changed into a prime (66524461) 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, 4174 + ... + 12266.

It is an arithmetic number, because the mean of its divisors is an integer number (3909402).

Almost surely, 2^66524460 is an apocalyptic number.

66524460 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 66524460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93825648).

66524460 is an abundant number, since it is smaller than the sum of its proper divisors (121126836).

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

66524460 is a wasteful number, since it uses less digits than its factorization.

66524460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8242 (or 8240 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 66524460 is about 8156.2528160915. The cubic root of 66524460 is about 405.1916179064.

The spelling of 66524460 in words is "sixty-six million, five hundred twenty-four thousand, four hundred sixty".