1680563137 has 16 divisors (see below), whose sum is σ = 1902657600. Its totient is φ = 1470360640.

The previous prime is 1680563119. The next prime is 1680563147. The reversal of 1680563137 is 7313650861.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1680563137 - 2¹¹ = 1680561089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1680563137.

It is not an unprimeable number, because it can be changed into a prime (1680563147) 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, 92814 + ... + 109432.

It is an arithmetic number, because the mean of its divisors is an integer number (118916100).

Almost surely, 2^1680563137 is an apocalyptic number.

It is an amenable number.

1680563137 is a deficient number, since it is larger than the sum of its proper divisors (222094463).

1680563137 is a wasteful number, since it uses less digits than its factorization.

1680563137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16976.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 1680563137 is about 40994.6720562563. The cubic root of 1680563137 is about 1188.9172027926.

The spelling of 1680563137 in words is "one billion, six hundred eighty million, five hundred sixty-three thousand, one hundred thirty-seven".