1606723685827 has 16 divisors (see below), whose sum is σ = 1787140456192. Its totient is φ = 1434478325760.

The previous prime is 1606723685789. The next prime is 1606723685837. The reversal of 1606723685827 is 7285863276061.

It is a cyclic number.

It is not a de Polignac number, because 1606723685827 - 2¹¹ = 1606723683779 is a prime.

It is a super-2 number, since 2×1606723685827² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1606723685837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 405678 + ... + 1837939.

It is an arithmetic number, because the mean of its divisors is an integer number (111696278512).

Almost surely, 2^{1606723685827} is an apocalyptic number.

1606723685827 is a deficient number, since it is larger than the sum of its proper divisors (180416770365).

1606723685827 is a wasteful number, since it uses less digits than its factorization.

1606723685827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245438.

The product of its (nonzero) digits is 40642560, while the sum is 61.

The spelling of 1606723685827 in words is "one trillion, six hundred six billion, seven hundred twenty-three million, six hundred eighty-five thousand, eight hundred twenty-seven".