1656656116 has 12 divisors (see below), whose sum is σ = 2909616388. Its totient is φ = 825337152.

The previous prime is 1656656107. The next prime is 1656656123. The reversal of 1656656116 is 6116566561.

It can be written as a sum of positive squares in 2 ways, for example, as 1050019216 + 606636900 = 32404^2 + 24630^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746481 + ... + 748696.

Almost surely, 2^1656656116 is an apocalyptic number.

It is an amenable number.

1656656116 is a deficient number, since it is larger than the sum of its proper divisors (1252960272).

1656656116 is a wasteful number, since it uses less digits than its factorization.

1656656116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495458 (or 1495456 counting only the distinct ones).

The product of its digits is 194400, while the sum is 43.

The square root of 1656656116 is about 40702.0406859410. The cubic root of 1656656116 is about 1183.2525689947.

The spelling of 1656656116 in words is "one billion, six hundred fifty-six million, six hundred fifty-six thousand, one hundred sixteen".