660594480 has 480 divisors, whose sum is σ = 2671704000. Its totient is φ = 133668864.

The previous prime is 660594463. The next prime is 660594499. The reversal of 660594480 is 84495066.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4433446 + ... + 4433594.

It is an arithmetic number, because the mean of its divisors is an integer number (5566050).

Almost surely, 2^660594480 is an apocalyptic number.

660594480 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 660594480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1335852000).

660594480 is an abundant number, since it is smaller than the sum of its proper divisors (2011109520).

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

660594480 is a wasteful number, since it uses less digits than its factorization.

660594480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 660594480 is about 25702.0326044459. The cubic root of 660594480 is about 870.9200993702.

The spelling of 660594480 in words is "six hundred sixty million, five hundred ninety-four thousand, four hundred eighty".