6355805780644 has 24 divisors (see below), whose sum is σ = 11791765223168. Its totient is φ = 2992271245920.

The previous prime is 6355805780629. The next prime is 6355805780659. The reversal of 6355805780644 is 4460875085536.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6355805780629) and next prime (6355805780659).

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, 692650794 + ... + 692659969.

Almost surely, 2^{6355805780644} is an apocalyptic number.

It is an amenable number.

6355805780644 is a deficient number, since it is larger than the sum of its proper divisors (5435959442524).

6355805780644 is a wasteful number, since it uses less digits than its factorization.

6355805780644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385310835 (or 1385310833 counting only the distinct ones).

The product of its (nonzero) digits is 96768000, while the sum is 61.

The spelling of 6355805780644 in words is "six trillion, three hundred fifty-five billion, eight hundred five million, seven hundred eighty thousand, six hundred forty-four".