1606223601437 has 48 divisors (see below), whose sum is σ = 2109443546112. Its totient is φ = 1190733834240.

The previous prime is 1606223601401. The next prime is 1606223601439. The reversal of 1606223601437 is 7341063226061.

It is a de Polignac number, because none of the positive numbers 2^k-1606223601437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1606223601394 and 1606223601403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606223601439) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5727737 + ... + 6001617.

It is an arithmetic number, because the mean of its divisors is an integer number (43946740544).

Almost surely, 2^{1606223601437} is an apocalyptic number.

1606223601437 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1606223601437 is a deficient number, since it is larger than the sum of its proper divisors (503219944675).

1606223601437 is a wasteful number, since it uses less digits than its factorization.

1606223601437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274158 (or 274141 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 41.

Adding to 1606223601437 its reverse (7341063226061), we get a palindrome (8947286827498).

The spelling of 1606223601437 in words is "one trillion, six hundred six billion, two hundred twenty-three million, six hundred one thousand, four hundred thirty-seven".