66098541258 has 12 divisors (see below), whose sum is σ = 143213506098. Its totient is φ = 22032847080.

The previous prime is 66098541253. The next prime is 66098541323. The reversal of 66098541258 is 85214589066.

66098541258 is a `hidden beast` number, since 6 + 6 + 0 + 98 + 541 + 2 + 5 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 64965343689 + 1133197569 = 254883^2 + 33663^2 .

It is not an unprimeable number, because it can be changed into a prime (66098541253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1836070573 + ... + 1836070608.

Almost surely, 2^66098541258 is an apocalyptic number.

66098541258 is an abundant number, since it is smaller than the sum of its proper divisors (77114964840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66098541258 is a wasteful number, since it uses less digits than its factorization.

66098541258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3672141189 (or 3672141186 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

The spelling of 66098541258 in words is "sixty-six billion, ninety-eight million, five hundred forty-one thousand, two hundred fifty-eight".