4155217569442 has 8 divisors (see below), whose sum is σ = 6503818804416. Its totient is φ = 1987277967972.

The previous prime is 4155217569439. The next prime is 4155217569443. The reversal of 4155217569442 is 2449657125514.

4155217569442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (4155217569443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45165408318 + ... + 45165408409.

It is an arithmetic number, because the mean of its divisors is an integer number (812977350552).

Almost surely, 2^{4155217569442} is an apocalyptic number.

4155217569442 is a deficient number, since it is larger than the sum of its proper divisors (2348601234974).

4155217569442 is a wasteful number, since it uses less digits than its factorization.

4155217569442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90330816752.

The product of its digits is 12096000, while the sum is 55.

The spelling of 4155217569442 in words is "four trillion, one hundred fifty-five billion, two hundred seventeen million, five hundred sixty-nine thousand, four hundred forty-two".