1608538285551 has 16 divisors (see below), whose sum is σ = 2233044763488. Its totient is φ = 1029052876800.

The previous prime is 1608538285447. The next prime is 1608538285561. The reversal of 1608538285551 is 1555828358061.

It is not a de Polignac number, because 1608538285551 - 2¹⁰ = 1608538284527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1608538285491 and 1608538285500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1608538285561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107185506 + ... + 107200511.

It is an arithmetic number, because the mean of its divisors is an integer number (139565297718).

Almost surely, 2^{1608538285551} is an apocalyptic number.

1608538285551 is a deficient number, since it is larger than the sum of its proper divisors (624506477937).

1608538285551 is a wasteful number, since it uses less digits than its factorization.

1608538285551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214386122.

The product of its (nonzero) digits is 11520000, while the sum is 57.

The spelling of 1608538285551 in words is "one trillion, six hundred eight billion, five hundred thirty-eight million, two hundred eighty-five thousand, five hundred fifty-one".