6501672066 has 64 divisors (see below), whose sum is σ = 14001278976. Its totient is φ = 2005382400.

The previous prime is 6501672061. The next prime is 6501672101. The reversal of 6501672066 is 6602761056.

It is not an unprimeable number, because it can be changed into a prime (6501672061) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 3120261 + ... + 3122343.

It is an arithmetic number, because the mean of its divisors is an integer number (218769984).

Almost surely, 2^6501672066 is an apocalyptic number.

6501672066 is an abundant number, since it is smaller than the sum of its proper divisors (7499606910).

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

6501672066 is a wasteful number, since it uses less digits than its factorization.

6501672066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2607.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 6501672066 is about 80632.9465293189. The cubic root of 6501672066 is about 1866.4155904581.

The spelling of 6501672066 in words is "six billion, five hundred one million, six hundred seventy-two thousand, sixty-six".