6534401567 has 2 divisors, whose sum is σ = 6534401568. Its totient is φ = 6534401566.

The previous prime is 6534401563. The next prime is 6534401569. The reversal of 6534401567 is 7651044356.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6534401567 - 2² = 6534401563 is a prime.

Together with 6534401569, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6534401563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3267200783 + 3267200784.

It is an arithmetic number, because the mean of its divisors is an integer number (3267200784).

Almost surely, 2^6534401567 is an apocalyptic number.

6534401567 is a deficient number, since it is larger than the sum of its proper divisors (1).

6534401567 is an equidigital number, since it uses as much as digits as its factorization.

6534401567 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 41.

The square root of 6534401567 is about 80835.6453985493. The cubic root of 6534401567 is about 1869.5422032242.

The spelling of 6534401567 in words is "six billion, five hundred thirty-four million, four hundred one thousand, five hundred sixty-seven".