66098061 has 12 divisors (see below), whose sum is σ = 95972188. Its totient is φ = 43835904.

The previous prime is 66098059. The next prime is 66098083. The reversal of 66098061 is 16089066.

It can be written as a sum of positive squares in 2 ways, for example, as 21622500 + 44475561 = 4650^2 + 6669^2 .

It is not a de Polignac number, because 66098061 - 2¹ = 66098059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66098041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17290 + ... + 20763.

Almost surely, 2^66098061 is an apocalyptic number.

It is an amenable number.

66098061 is a deficient number, since it is larger than the sum of its proper divisors (29874127).

66098061 is a wasteful number, since it uses less digits than its factorization.

66098061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38252 (or 38249 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 66098061 is about 8130.0714019005. The cubic root of 66098061 is about 404.3240484940.

The spelling of 66098061 in words is "sixty-six million, ninety-eight thousand, sixty-one".