66255060 has 96 divisors (see below), whose sum is σ = 193536000. Its totient is φ = 16917120.

The previous prime is 66255047. The next prime is 66255067. The reversal of 66255060 is 6055266.

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 (66255067) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 332841 + ... + 333039.

It is an arithmetic number, because the mean of its divisors is an integer number (2016000).

Almost surely, 2^66255060 is an apocalyptic number.

66255060 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 66255060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96768000).

66255060 is an abundant number, since it is smaller than the sum of its proper divisors (127280940).

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

66255060 is a wasteful number, since it uses less digits than its factorization.

66255060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 66255060 is about 8139.7211254440. The cubic root of 66255060 is about 404.6439180817.

The spelling of 66255060 in words is "sixty-six million, two hundred fifty-five thousand, sixty".