1655206522247 has 2 divisors, whose sum is σ = 1655206522248. Its totient is φ = 1655206522246.

The previous prime is 1655206522201. The next prime is 1655206522261. The reversal of 1655206522247 is 7422256025561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1655206522247 - 2³² = 1650911554951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1655206522447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 827603261123 + 827603261124.

It is an arithmetic number, because the mean of its divisors is an integer number (827603261124).

Almost surely, 2^{1655206522247} is an apocalyptic number.

1655206522247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1655206522247 is an equidigital number, since it uses as much as digits as its factorization.

1655206522247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016000, while the sum is 47.

The spelling of 1655206522247 in words is "one trillion, six hundred fifty-five billion, two hundred six million, five hundred twenty-two thousand, two hundred forty-seven".