6646404046802 has 16 divisors (see below), whose sum is σ = 11082837518592. Its totient is φ = 2968617191760.

The previous prime is 6646404046801. The next prime is 6646404046811. The reversal of 6646404046802 is 2086404046466.

It is not an unprimeable number, because it can be changed into a prime (6646404046801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4123078628 + ... + 4123080239.

It is an arithmetic number, because the mean of its divisors is an integer number (692677344912).

Almost surely, 2^{6646404046802} is an apocalyptic number.

6646404046802 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

6646404046802 is a deficient number, since it is larger than the sum of its proper divisors (4436433471790).

6646404046802 is a wasteful number, since it uses less digits than its factorization.

6646404046802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8246158913.

The product of its (nonzero) digits is 5308416, while the sum is 50.

The spelling of 6646404046802 in words is "six trillion, six hundred forty-six billion, four hundred four million, forty-six thousand, eight hundred two".