660882804 has 12 divisors (see below), whose sum is σ = 1542059904. Its totient is φ = 220294264.

The previous prime is 660882799. The next prime is 660882809. The reversal of 660882804 is 408288066.

It is an interprime number because it is at equal distance from previous prime (660882799) and next prime (660882809).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660882809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27536772 + ... + 27536795.

It is an arithmetic number, because the mean of its divisors is an integer number (128504992).

Almost surely, 2^660882804 is an apocalyptic number.

It is an amenable number.

660882804 is an abundant number, since it is smaller than the sum of its proper divisors (881177100).

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

660882804 is a wasteful number, since it uses less digits than its factorization.

660882804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55073574 (or 55073572 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The square root of 660882804 is about 25707.6409652850. The cubic root of 660882804 is about 871.0467886126.

The spelling of 660882804 in words is "six hundred sixty million, eight hundred eighty-two thousand, eight hundred four".