1606272213613 has 8 divisors (see below), whose sum is σ = 1677140359488. Its totient is φ = 1535489919744.

The previous prime is 1606272213587. The next prime is 1606272213649. The reversal of 1606272213613 is 3163122726061.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1606272213613 is a prime.

It is a super-2 number, since 2×1606272213613² (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 (1606272213673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21424756 + ... + 21499597.

It is an arithmetic number, because the mean of its divisors is an integer number (209642544936).

Almost surely, 2^{1606272213613} is an apocalyptic number.

It is an amenable number.

1606272213613 is a deficient number, since it is larger than the sum of its proper divisors (70868145875).

1606272213613 is a wasteful number, since it uses less digits than its factorization.

1606272213613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42926003.

The product of its (nonzero) digits is 108864, while the sum is 40.

Adding to 1606272213613 its reverse (3163122726061), we get a palindrome (4769394939674).

The spelling of 1606272213613 in words is "one trillion, six hundred six billion, two hundred seventy-two million, two hundred thirteen thousand, six hundred thirteen".