66060288 has 126 divisors (see below), whose sum is σ = 218103704. Its totient is φ = 18874368.

The previous prime is 66060277. The next prime is 66060311. The reversal of 66060288 is 88206066.

It is a tau number, because it is divible by the number of its divisors (126).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 2 and base 4.

It is a zygodrome in base 2 and base 4.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9437181 + ... + 9437187.

Almost surely, 2^66060288 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 66060288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109051852).

66060288 is an abundant number, since it is smaller than the sum of its proper divisors (152043416).

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

66060288 is an frugal number, since it uses more digits than its factorization.

66060288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53 (or 12 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 66060288 is about 8127.7480275904. The cubic root of 66060288 is about 404.2470142500.

The spelling of 66060288 in words is "sixty-six million, sixty thousand, two hundred eighty-eight".