1551104430144 has 28 divisors (see below), whose sum is σ = 4103963805264. Its totient is φ = 517034809984.

The previous prime is 1551104430133. The next prime is 1551104430151. The reversal of 1551104430144 is 4410344011551.

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, 4039334262 + ... + 4039334645.

Almost surely, 2^{1551104430144} is an apocalyptic number.

It is an amenable number.

1551104430144 is an abundant number, since it is smaller than the sum of its proper divisors (2552859375120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1551104430144 is an equidigital number, since it uses as much as digits as its factorization.

1551104430144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8078668922 (or 8078668912 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

Adding to 1551104430144 its reverse (4410344011551), we get a palindrome (5961448441695).

The spelling of 1551104430144 in words is "one trillion, five hundred fifty-one billion, one hundred four million, four hundred thirty thousand, one hundred forty-four".