6684462561 has 64 divisors (see below), whose sum is σ = 11574374400. Its totient is φ = 3341834496.

The previous prime is 6684462557. The next prime is 6684462641. The reversal of 6684462561 is 1652644866.

It is not a de Polignac number, because 6684462561 - 2² = 6684462557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6684462561.

It is not an unprimeable number, because it can be changed into a prime (6684462541) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 253575 + ... + 278691.

It is an arithmetic number, because the mean of its divisors is an integer number (180849600).

Almost surely, 2^6684462561 is an apocalyptic number.

It is an amenable number.

6684462561 is a deficient number, since it is larger than the sum of its proper divisors (4889911839).

6684462561 is a wasteful number, since it uses less digits than its factorization.

6684462561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25198.

The product of its digits is 1658880, while the sum is 48.

The square root of 6684462561 is about 81758.5626157897. The cubic root of 6684462561 is about 1883.7452276397.

The spelling of 6684462561 in words is "six billion, six hundred eighty-four million, four hundred sixty-two thousand, five hundred sixty-one".