6430640816200 has 48 divisors (see below), whose sum is σ = 15738147270000. Its totient is φ = 2436874413120.

The previous prime is 6430640816153. The next prime is 6430640816207. The reversal of 6430640816200 is 26180460346.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (6430640816207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 846133150 + ... + 846140749.

It is an arithmetic number, because the mean of its divisors is an integer number (327878068125).

Almost surely, 2^{6430640816200} is an apocalyptic number.

It is an amenable number.

6430640816200 is an abundant number, since it is smaller than the sum of its proper divisors (9307506453800).

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

6430640816200 is a wasteful number, since it uses less digits than its factorization.

6430640816200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692273934 (or 1692273925 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 6430640816200 in words is "six trillion, four hundred thirty billion, six hundred forty million, eight hundred sixteen thousand, two hundred".