2643816466 has 16 divisors (see below), whose sum is σ = 4153550400. Its totient is φ = 1259727568.

The previous prime is 2643816403. The next prime is 2643816481. The reversal of 2643816466 is 6646183462.

It is a Harshad number since it is a multiple of its sum of digits (46).

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, 94456 + ... + 119203.

It is an arithmetic number, because the mean of its divisors is an integer number (259596900).

Almost surely, 2^2643816466 is an apocalyptic number.

2643816466 is a deficient number, since it is larger than the sum of its proper divisors (1509733934).

2643816466 is a wasteful number, since it uses less digits than its factorization.

2643816466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213953.

The product of its digits is 995328, while the sum is 46.

The square root of 2643816466 is about 51418.0558364472. The cubic root of 2643816466 is about 1382.7503201630.

The spelling of 2643816466 in words is "two billion, six hundred forty-three million, eight hundred sixteen thousand, four hundred sixty-six".