66098537 has 2 divisors, whose sum is σ = 66098538. Its totient is φ = 66098536.

The previous prime is 66098521. The next prime is 66098597. The reversal of 66098537 is 73589066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62789776 + 3308761 = 7924^2 + 1819^2 .

It is a cyclic number.

It is not a de Polignac number, because 66098537 - 2⁴ = 66098521 is a prime.

It is not a weakly prime, because it can be changed into another prime (66098597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33049268 + 33049269.

It is an arithmetic number, because the mean of its divisors is an integer number (33049269).

Almost surely, 2^66098537 is an apocalyptic number.

It is an amenable number.

66098537 is a deficient number, since it is larger than the sum of its proper divisors (1).

66098537 is an equidigital number, since it uses as much as digits as its factorization.

66098537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 66098537 is about 8130.1006758834. The cubic root of 66098537 is about 404.3250190609.

The spelling of 66098537 in words is "sixty-six million, ninety-eight thousand, five hundred thirty-seven".