1664680060 has 24 divisors (see below), whose sum is σ = 3679819920. Its totient is φ = 630825984.

The previous prime is 1664680037. The next prime is 1664680091. The reversal of 1664680060 is 600864661.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2189989 + ... + 2190748.

It is an arithmetic number, because the mean of its divisors is an integer number (153325830).

Almost surely, 2^1664680060 is an apocalyptic number.

1664680060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1664680060 is an abundant number, since it is smaller than the sum of its proper divisors (2015139860).

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

1664680060 is a wasteful number, since it uses less digits than its factorization.

1664680060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4380765 (or 4380763 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 1664680060 is about 40800.4909284190. The cubic root of 1664680060 is about 1185.1598376738.

The spelling of 1664680060 in words is "one billion, six hundred sixty-four million, six hundred eighty thousand, sixty".