42166455103 has 2 divisors, whose sum is σ = 42166455104. Its totient is φ = 42166455102.

The previous prime is 42166455101. The next prime is 42166455169. The reversal of 42166455103 is 30155466124.

42166455103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42166455103 - 2¹ = 42166455101 is a prime.

Together with 42166455101, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42166455101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21083227551 + 21083227552.

It is an arithmetic number, because the mean of its divisors is an integer number (21083227552).

Almost surely, 2^42166455103 is an apocalyptic number.

42166455103 is a deficient number, since it is larger than the sum of its proper divisors (1).

42166455103 is an equidigital number, since it uses as much as digits as its factorization.

42166455103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 42166455103 in words is "forty-two billion, one hundred sixty-six million, four hundred fifty-five thousand, one hundred three".