1544356506161 has 8 divisors (see below), whose sum is σ = 1782114582144. Its totient is φ = 1310882359680.

The previous prime is 1544356506101. The next prime is 1544356506179. The reversal of 1544356506161 is 1616056534451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1544356506161 - 2¹⁸ = 1544356244017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1544356506101) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1070981600 + ... + 1070983041.

It is an arithmetic number, because the mean of its divisors is an integer number (222764322768).

Almost surely, 2^{1544356506161} is an apocalyptic number.

It is an amenable number.

1544356506161 is a deficient number, since it is larger than the sum of its proper divisors (237758075983).

1544356506161 is a wasteful number, since it uses less digits than its factorization.

1544356506161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141964751.

The product of its (nonzero) digits is 1296000, while the sum is 47.

The spelling of 1544356506161 in words is "one trillion, five hundred forty-four billion, three hundred fifty-six million, five hundred six thousand, one hundred sixty-one".