4647805066640 has 40 divisors (see below), whose sum is σ = 10861000353720. Its totient is φ = 1849684852736.

The previous prime is 4647805066637. The next prime is 4647805066711. The reversal of 4647805066640 is 466605087464.

It can be written as a sum of positive squares in 4 ways, for example, as 476668729744 + 4171136336896 = 690412^2 + 2042336^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147439985 + ... + 147471504.

It is an arithmetic number, because the mean of its divisors is an integer number (271525008843).

Almost surely, 2^{4647805066640} is an apocalyptic number.

4647805066640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4647805066640 is an abundant number, since it is smaller than the sum of its proper divisors (6213195287080).

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

4647805066640 is a wasteful number, since it uses less digits than its factorization.

4647805066640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294911699 (or 294911693 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 56.

The spelling of 4647805066640 in words is "four trillion, six hundred forty-seven billion, eight hundred five million, sixty-six thousand, six hundred forty".