202144021420444 has 24 divisors (see below), whose sum is σ = 354460818700800. Its totient is φ = 100869508025904.

The previous prime is 202144021420427. The next prime is 202144021420457. The reversal of 202144021420444 is 444024120441202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134861457 + ... + 136352119.

It is an arithmetic number, because the mean of its divisors is an integer number (14769200779200).

Almost surely, 2^{202144021420444} is an apocalyptic number.

It is an amenable number.

202144021420444 is a deficient number, since it is larger than the sum of its proper divisors (152316797280356).

202144021420444 is a wasteful number, since it uses less digits than its factorization.

202144021420444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558569 (or 1558567 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 34.

Adding to 202144021420444 its reverse (444024120441202), we get a palindrome (646168141861646).

The spelling of 202144021420444 in words is "two hundred two trillion, one hundred forty-four billion, twenty-one million, four hundred twenty thousand, four hundred forty-four".