660960000000 has 1152 divisors, whose sum is σ = 2620153448640. Its totient is φ = 165888000000.

The previous prime is 660959999977. The next prime is 660960000007. The reversal of 660960000000 is 69066.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660960000007) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 38879999992 + ... + 38880000008.

Almost surely, 2^660960000000 is an apocalyptic number.

660960000000 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 660960000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1310076724320).

660960000000 is an abundant number, since it is smaller than the sum of its proper divisors (1959193448640).

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

660960000000 is an frugal number, since it uses more digits than its factorization.

660960000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 27 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

Adding to 660960000000 its reverse (69066), we get a palindrome (660960069066).

The spelling of 660960000000 in words is "six hundred sixty billion, nine hundred sixty million", and thus it is an aban number.