6545260620443 has 2 divisors, whose sum is σ = 6545260620444. Its totient is φ = 6545260620442.

The previous prime is 6545260620427. The next prime is 6545260620497. The reversal of 6545260620443 is 3440260625456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6545260620443 - 2⁴ = 6545260620427 is a prime.

It is not a weakly prime, because it can be changed into another prime (6545260620343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3272630310221 + 3272630310222.

It is an arithmetic number, because the mean of its divisors is an integer number (3272630310222).

Almost surely, 2^{6545260620443} is an apocalyptic number.

6545260620443 is a deficient number, since it is larger than the sum of its proper divisors (1).

6545260620443 is an equidigital number, since it uses as much as digits as its factorization.

6545260620443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4147200, while the sum is 47.

The spelling of 6545260620443 in words is "six trillion, five hundred forty-five billion, two hundred sixty million, six hundred twenty thousand, four hundred forty-three".