544155551446 has 24 divisors (see below), whose sum is σ = 886397599224. Its totient is φ = 250424890560.

The previous prime is 544155551441. The next prime is 544155551447. The reversal of 544155551446 is 644155551445.

It is a super-2 number, since 2×544155551446² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 544155551446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544155551441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2202495 + ... + 2437066.

It is an arithmetic number, because the mean of its divisors is an integer number (36933233301).

Almost surely, 2^544155551446 is an apocalyptic number.

544155551446 is a deficient number, since it is larger than the sum of its proper divisors (342242047778).

544155551446 is a wasteful number, since it uses less digits than its factorization.

544155551446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4639936 (or 4639923 counting only the distinct ones).

The product of its digits is 4800000, while the sum is 49.

Subtracting 544155551446 from its reverse (644155551445), we obtain a palindrome (99999999999).

The spelling of 544155551446 in words is "five hundred forty-four billion, one hundred fifty-five million, five hundred fifty-one thousand, four hundred forty-six".