2256165267443 has 2 divisors, whose sum is σ = 2256165267444. Its totient is φ = 2256165267442.

The previous prime is 2256165267431. The next prime is 2256165267451. The reversal of 2256165267443 is 3447625616522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2256165267443 - 2¹⁶ = 2256165201907 is a prime.

It is a super-2 number, since 2×2256165267443² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2256165267413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128082633721 + 1128082633722.

It is an arithmetic number, because the mean of its divisors is an integer number (1128082633722).

Almost surely, 2^{2256165267443} is an apocalyptic number.

2256165267443 is a deficient number, since it is larger than the sum of its proper divisors (1).

2256165267443 is an equidigital number, since it uses as much as digits as its factorization.

2256165267443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14515200, while the sum is 53.

The spelling of 2256165267443 in words is "two trillion, two hundred fifty-six billion, one hundred sixty-five million, two hundred sixty-seven thousand, four hundred forty-three".