42668120145 has 16 divisors (see below), whose sum is σ = 78021705600. Its totient is φ = 19505426304.

The previous prime is 42668120083. The next prime is 42668120147. The reversal of 42668120145 is 54102186624.

It is a happy number.

It is not a de Polignac number, because 42668120145 - 2¹³ = 42668111953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42668120147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203181420 + ... + 203181629.

It is an arithmetic number, because the mean of its divisors is an integer number (4876356600).

Almost surely, 2^42668120145 is an apocalyptic number.

It is an amenable number.

42668120145 is a deficient number, since it is larger than the sum of its proper divisors (35353585455).

42668120145 is a wasteful number, since it uses less digits than its factorization.

42668120145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406363064.

The product of its (nonzero) digits is 92160, while the sum is 39.

The spelling of 42668120145 in words is "forty-two billion, six hundred sixty-eight million, one hundred twenty thousand, one hundred forty-five".