66098544 has 80 divisors (see below), whose sum is σ = 176988672. Its totient is φ = 21243904.

The previous prime is 66098537. The next prime is 66098597. The reversal of 66098544 is 44589066.

66098544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×66098544³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66098496 and 66098505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187072 + ... + 187424.

Almost surely, 2^66098544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66098544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88494336).

66098544 is an abundant number, since it is smaller than the sum of its proper divisors (110890128).

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

66098544 is a wasteful number, since it uses less digits than its factorization.

66098544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 66098544 is about 8130.1011063824. The cubic root of 66098544 is about 404.3250333339.

The spelling of 66098544 in words is "sixty-six million, ninety-eight thousand, five hundred forty-four".