1554443434145 has 32 divisors (see below), whose sum is σ = 2166850953216. Its totient is φ = 1048452350400.

The previous prime is 1554443434121. The next prime is 1554443434237. The reversal of 1554443434145 is 5414343444551.

It is not a de Polignac number, because 1554443434145 - 2¹⁸ = 1554443172001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1554443434145.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 345362 + ... + 1796708.

It is an arithmetic number, because the mean of its divisors is an integer number (67714092288).

Almost surely, 2^{1554443434145} is an apocalyptic number.

It is an amenable number.

1554443434145 is a deficient number, since it is larger than the sum of its proper divisors (612407519071).

1554443434145 is a wasteful number, since it uses less digits than its factorization.

1554443434145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1451861.

The product of its digits is 4608000, while the sum is 47.

Adding to 1554443434145 its reverse (5414343444551), we get a palindrome (6968786878696).

The spelling of 1554443434145 in words is "one trillion, five hundred fifty-four billion, four hundred forty-three million, four hundred thirty-four thousand, one hundred forty-five".