66072960 has 96 divisors (see below), whose sum is σ = 228178080. Its totient is φ = 17617920.

The previous prime is 66072959. The next prime is 66072973. The reversal of 66072960 is 6927066.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25 + ... + 11495.

It is an arithmetic number, because the mean of its divisors is an integer number (2376855).

Almost surely, 2^66072960 is an apocalyptic number.

66072960 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 66072960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114089040).

66072960 is an abundant number, since it is smaller than the sum of its proper divisors (162105120).

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

66072960 is a wasteful number, since it uses less digits than its factorization.

66072960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11496 (or 11481 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 66072960 is about 8128.5275419353. The cubic root of 66072960 is about 404.2728607952.

The spelling of 66072960 in words is "sixty-six million, seventy-two thousand, nine hundred sixty".