1855656150043 has 2 divisors, whose sum is σ = 1855656150044. Its totient is φ = 1855656150042.

The previous prime is 1855656150013. The next prime is 1855656150067. The reversal of 1855656150043 is 3400516565581.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1855656150043 - 2⁵ = 1855656150011 is a prime.

It is not a weakly prime, because it can be changed into another prime (1855656150013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 927828075021 + 927828075022.

It is an arithmetic number, because the mean of its divisors is an integer number (927828075022).

Almost surely, 2^{1855656150043} is an apocalyptic number.

1855656150043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1855656150043 is an equidigital number, since it uses as much as digits as its factorization.

1855656150043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160000, while the sum is 49.

The spelling of 1855656150043 in words is "one trillion, eight hundred fifty-five billion, six hundred fifty-six million, one hundred fifty thousand, forty-three".