66098256 has 120 divisors (see below), whose sum is σ = 201013920. Its totient is φ = 18660096.

The previous prime is 66098213. The next prime is 66098257. The reversal of 66098256 is 65289066.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66098257) 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 23 ways as a sum of consecutive naturals, for example, 369175 + ... + 369353.

It is an arithmetic number, because the mean of its divisors is an integer number (1675116).

Almost surely, 2^66098256 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 66098256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100506960).

66098256 is an abundant number, since it is smaller than the sum of its proper divisors (134915664).

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

66098256 is a wasteful number, since it uses less digits than its factorization.

66098256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 66098256 is about 8130.0833944062. The cubic root of 66098256 is about 404.3244461007.

The spelling of 66098256 in words is "sixty-six million, ninety-eight thousand, two hundred fifty-six".