128018266342 has 4 divisors (see below), whose sum is σ = 192027399516. Its totient is φ = 64009133170.

The previous prime is 128018266307. The next prime is 128018266373. The reversal of 128018266342 is 243662810821.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×128018266342² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32004566584 + ... + 32004566587.

It is an arithmetic number, because the mean of its divisors is an integer number (48006849879).

Almost surely, 2^128018266342 is an apocalyptic number.

128018266342 is a deficient number, since it is larger than the sum of its proper divisors (64009133174).

128018266342 is an equidigital number, since it uses as much as digits as its factorization.

128018266342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64009133173.

The product of its (nonzero) digits is 221184, while the sum is 43.

The spelling of 128018266342 in words is "one hundred twenty-eight billion, eighteen million, two hundred sixty-six thousand, three hundred forty-two".