6577432346378 has 16 divisors (see below), whose sum is σ = 10170469618920. Its totient is φ = 3187936656576.

The previous prime is 6577432346369. The next prime is 6577432346389. The reversal of 6577432346378 is 8736432347756.

It can be written as a sum of positive squares in 4 ways, for example, as 5693029404049 + 884402942329 = 2386007^2 + 940427^2 .

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, 165192401 + ... + 165232212.

Almost surely, 2^{6577432346378} is an apocalyptic number.

6577432346378 is a deficient number, since it is larger than the sum of its proper divisors (3593037272542).

6577432346378 is a wasteful number, since it uses less digits than its factorization.

6577432346378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330424921.

The product of its digits is 426746880, while the sum is 65.

The spelling of 6577432346378 in words is "six trillion, five hundred seventy-seven billion, four hundred thirty-two million, three hundred forty-six thousand, three hundred seventy-eight".