1616094821447 has 4 divisors (see below), whose sum is σ = 1650479817696. Its totient is φ = 1581709825200.

The previous prime is 1616094821387. The next prime is 1616094821449. The reversal of 1616094821447 is 7441284906161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1616094821447 - 2¹⁰ = 1616094820423 is a prime.

It is a super-2 number, since 2×1616094821447² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616094821449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17192498054 + ... + 17192498147.

It is an arithmetic number, because the mean of its divisors is an integer number (412619954424).

Almost surely, 2^{1616094821447} is an apocalyptic number.

1616094821447 is a deficient number, since it is larger than the sum of its proper divisors (34384996249).

1616094821447 is an equidigital number, since it uses as much as digits as its factorization.

1616094821447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34384996248.

The product of its (nonzero) digits is 2322432, while the sum is 53.

The spelling of 1616094821447 in words is "one trillion, six hundred sixteen billion, ninety-four million, eight hundred twenty-one thousand, four hundred forty-seven".