42155233401 has 8 divisors (see below), whose sum is σ = 56213097184. Its totient is φ = 28100429280.

The previous prime is 42155233397. The next prime is 42155233411. The reversal of 42155233401 is 10433255124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42155233401 - 2² = 42155233397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42155233411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 732571 + ... + 788016.

It is an arithmetic number, because the mean of its divisors is an integer number (7026637148).

Almost surely, 2^42155233401 is an apocalyptic number.

It is an amenable number.

42155233401 is a deficient number, since it is larger than the sum of its proper divisors (14057863783).

42155233401 is a wasteful number, since it uses less digits than its factorization.

42155233401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529831.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 42155233401 its reverse (10433255124), we get a palindrome (52588488525).

The spelling of 42155233401 in words is "forty-two billion, one hundred fifty-five million, two hundred thirty-three thousand, four hundred one".