6253661656271 has 2 divisors, whose sum is σ = 6253661656272. Its totient is φ = 6253661656270.

The previous prime is 6253661656213. The next prime is 6253661656351. The reversal of 6253661656271 is 1726561663526.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6253661656271 is a prime.

It is a super-2 number, since 2×6253661656271² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6253661656871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3126830828135 + 3126830828136.

It is an arithmetic number, because the mean of its divisors is an integer number (3126830828136).

Almost surely, 2^{6253661656271} is an apocalyptic number.

6253661656271 is a deficient number, since it is larger than the sum of its proper divisors (1).

6253661656271 is an equidigital number, since it uses as much as digits as its factorization.

6253661656271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16329600, while the sum is 56.

The spelling of 6253661656271 in words is "six trillion, two hundred fifty-three billion, six hundred sixty-one million, six hundred fifty-six thousand, two hundred seventy-one".