6646754842662 has 32 divisors (see below), whose sum is σ = 14739748452864. Its totient is φ = 1981148983200.

The previous prime is 6646754842661. The next prime is 6646754842699. The reversal of 6646754842662 is 2662484576466.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a junction number, because it is equal to n+sod(n) for n = 6646754842593 and 6646754842602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6646754842661) 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, 825474718 + ... + 825482769.

It is an arithmetic number, because the mean of its divisors is an integer number (460617139152).

Almost surely, 2^{6646754842662} is an apocalyptic number.

6646754842662 is an abundant number, since it is smaller than the sum of its proper divisors (8092993610202).

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

6646754842662 is a wasteful number, since it uses less digits than its factorization.

6646754842662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650957564.

The product of its digits is 557383680, while the sum is 66.

The spelling of 6646754842662 in words is "six trillion, six hundred forty-six billion, seven hundred fifty-four million, eight hundred forty-two thousand, six hundred sixty-two".