660147600 has 360 divisors, whose sum is σ = 2506595520. Its totient is φ = 148055040.

The previous prime is 660147589. The next prime is 660147623. The reversal of 660147600 is 6741066.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6056346 + ... + 6056454.

Almost surely, 2^660147600 is an apocalyptic number.

660147600 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 660147600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1253297760).

660147600 is an abundant number, since it is smaller than the sum of its proper divisors (1846447920).

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

660147600 is a wasteful number, since it uses less digits than its factorization.

660147600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 660147600 is about 25693.3376578443. The cubic root of 660147600 is about 870.7236679334.

Adding to 660147600 its reverse (6741066), we get a palindrome (666888666).

The spelling of 660147600 in words is "six hundred sixty million, one hundred forty-seven thousand, six hundred".