1659682537 has 2 divisors, whose sum is σ = 1659682538. Its totient is φ = 1659682536.

The previous prime is 1659682517. The next prime is 1659682543. The reversal of 1659682537 is 7352869561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1360945881 + 298736656 = 36891^2 + 17284^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1659682537 is a prime.

It is a super-2 number, since 2×1659682537² = 5509092247245512738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1659682517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 829841268 + 829841269.

It is an arithmetic number, because the mean of its divisors is an integer number (829841269).

Almost surely, 2^1659682537 is an apocalyptic number.

It is an amenable number.

1659682537 is a deficient number, since it is larger than the sum of its proper divisors (1).

1659682537 is an equidigital number, since it uses as much as digits as its factorization.

1659682537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2721600, while the sum is 52.

The square root of 1659682537 is about 40739.2014772013. The cubic root of 1659682537 is about 1183.9726625144.

The spelling of 1659682537 in words is "one billion, six hundred fifty-nine million, six hundred eighty-two thousand, five hundred thirty-seven".