1656416013656 has 32 divisors (see below), whose sum is σ = 3122510711760. Its totient is φ = 823748247552.

The previous prime is 1656416013647. The next prime is 1656416013689. The reversal of 1656416013656 is 6563106146561.

It is a super-3 number, since 3×1656416013656³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7617416 + ... + 7831848.

Almost surely, 2^{1656416013656} is an apocalyptic number.

It is an amenable number.

1656416013656 is a deficient number, since it is larger than the sum of its proper divisors (1466094698104).

1656416013656 is a wasteful number, since it uses less digits than its factorization.

1656416013656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219635 (or 219631 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 50.

The spelling of 1656416013656 in words is "one trillion, six hundred fifty-six billion, four hundred sixteen million, thirteen thousand, six hundred fifty-six".