6501680670 has 32 divisors (see below), whose sum is σ = 15836934528. Its totient is φ = 1707903648.

The previous prime is 6501680621. The next prime is 6501680671. The reversal of 6501680670 is 760861056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6501680671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1615324 + ... + 1619343.

It is an arithmetic number, because the mean of its divisors is an integer number (494904204).

Almost surely, 2^6501680670 is an apocalyptic number.

6501680670 is an abundant number, since it is smaller than the sum of its proper divisors (9335253858).

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

6501680670 is a wasteful number, since it uses less digits than its factorization.

6501680670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3234744.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 6501680670 is about 80632.9998821822. Note that the first 3 decimals coincide. The cubic root of 6501680670 is about 1866.4164137659.

The spelling of 6501680670 in words is "six billion, five hundred one million, six hundred eighty thousand, six hundred seventy".