66601098 has 24 divisors (see below), whose sum is σ = 144731808. Its totient is φ = 22134312.

The previous prime is 66601091. The next prime is 66601111. The reversal of 66601098 is 89010666.

It is not an unprimeable number, because it can be changed into a prime (66601091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 915 + ... + 11577.

It is an arithmetic number, because the mean of its divisors is an integer number (6030492).

Almost surely, 2^66601098 is an apocalyptic number.

66601098 is an abundant number, since it is smaller than the sum of its proper divisors (78130710).

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

66601098 is a wasteful number, since it uses less digits than its factorization.

66601098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11018 (or 11015 counting only the distinct ones).

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

The square root of 66601098 is about 8160.9495771019. The cubic root of 66601098 is about 405.3471554745.

The spelling of 66601098 in words is "sixty-six million, six hundred one thousand, ninety-eight".