1606213544273 has 8 divisors (see below), whose sum is σ = 1729848008616. Its totient is φ = 1482590448000.

The previous prime is 1606213544269. The next prime is 1606213544303. The reversal of 1606213544273 is 3724453126061.

It can be written as a sum of positive squares in 4 ways, for example, as 338715852049 + 1267497692224 = 581993^2 + 1125832^2 .

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 1606213544273 - 2² = 1606213544269 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1606213544233) 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 7 ways as a sum of consecutive naturals, for example, 2547428 + ... + 3114773.

It is an arithmetic number, because the mean of its divisors is an integer number (216231001077).

Almost surely, 2^{1606213544273} is an apocalyptic number.

1606213544273 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1606213544273 is a deficient number, since it is larger than the sum of its proper divisors (123634464343).

1606213544273 is a wasteful number, since it uses less digits than its factorization.

1606213544273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5684035.

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 1606213544273 in words is "one trillion, six hundred six billion, two hundred thirteen million, five hundred forty-four thousand, two hundred seventy-three".