6680661075 has 216 divisors, whose sum is σ = 14078098944. Its totient is φ = 3018998400.

The previous prime is 6680661011. The next prime is 6680661089. The reversal of 6680661075 is 5701660866.

It is not a de Polignac number, because 6680661075 - 2⁶ = 6680661011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 6680661075.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 29430112 + ... + 29430338.

It is an arithmetic number, because the mean of its divisors is an integer number (65176384).

Almost surely, 2^6680661075 is an apocalyptic number.

6680661075 is an abundant number, since it is smaller than the sum of its proper divisors (7397437869).

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

6680661075 is a wasteful number, since it uses less digits than its factorization.

6680661075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 6680661075 is about 81735.3110656588. The cubic root of 6680661075 is about 1883.3880616009.

The spelling of 6680661075 in words is "six billion, six hundred eighty million, six hundred sixty-one thousand, seventy-five".