1606256603246 has 4 divisors (see below), whose sum is σ = 2409384904872. Its totient is φ = 803128301622.

The previous prime is 1606256603233. The next prime is 1606256603279. The reversal of 1606256603246 is 6423066526061.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1606256603246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401564150810 + ... + 401564150813.

It is an arithmetic number, because the mean of its divisors is an integer number (602346226218).

Almost surely, 2^{1606256603246} is an apocalyptic number.

1606256603246 is a deficient number, since it is larger than the sum of its proper divisors (803128301626).

1606256603246 is an equidigital number, since it uses as much as digits as its factorization.

1606256603246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803128301625.

The product of its (nonzero) digits is 1866240, while the sum is 47.

The spelling of 1606256603246 in words is "one trillion, six hundred six billion, two hundred fifty-six million, six hundred three thousand, two hundred forty-six".