244200242155 has 4 divisors (see below), whose sum is σ = 293040290592. Its totient is φ = 195360193720.

The previous prime is 244200242063. The next prime is 244200242269. The reversal of 244200242155 is 551242002442.

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

It is not a de Polignac number, because 244200242155 - 2¹¹ = 244200240107 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24420024211 + ... + 24420024220.

It is an arithmetic number, because the mean of its divisors is an integer number (73260072648).

Almost surely, 2^244200242155 is an apocalyptic number.

244200242155 is a deficient number, since it is larger than the sum of its proper divisors (48840048437).

244200242155 is an equidigital number, since it uses as much as digits as its factorization.

244200242155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48840048436.

The product of its (nonzero) digits is 25600, while the sum is 31.

Adding to 244200242155 its reverse (551242002442), we get a palindrome (795442244597).

The spelling of 244200242155 in words is "two hundred forty-four billion, two hundred million, two hundred forty-two thousand, one hundred fifty-five".