66058537 has 2 divisors, whose sum is σ = 66058538. Its totient is φ = 66058536.

The previous prime is 66058477. The next prime is 66058541. The reversal of 66058537 is 73585066.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41615401 + 24443136 = 6451^2 + 4944^2 .

It is a cyclic number.

It is not a de Polignac number, because 66058537 - 2⁷ = 66058409 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66058537.

It is not a weakly prime, because it can be changed into another prime (66058567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33029268 + 33029269.

It is an arithmetic number, because the mean of its divisors is an integer number (33029269).

Almost surely, 2^66058537 is an apocalyptic number.

It is an amenable number.

66058537 is a deficient number, since it is larger than the sum of its proper divisors (1).

66058537 is an equidigital number, since it uses as much as digits as its factorization.

66058537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 66058537 is about 8127.6403094625. The cubic root of 66058537 is about 404.2434425491.

The spelling of 66058537 in words is "sixty-six million, fifty-eight thousand, five hundred thirty-seven".