66326148 has 96 divisors (see below), whose sum is σ = 199987200. Its totient is φ = 18616608.

The previous prime is 66326107. The next prime is 66326149. The reversal of 66326148 is 84162366.

66326148 is a `hidden beast` number, since 6 + 6 + 32 + 614 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (66326149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43861 + ... + 45347.

It is an arithmetic number, because the mean of its divisors is an integer number (2083200).

Almost surely, 2^66326148 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 66326148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99993600).

66326148 is an abundant number, since it is smaller than the sum of its proper divisors (133661052).

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

66326148 is a wasteful number, since it uses less digits than its factorization.

66326148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566 (or 1558 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 66326148 is about 8144.0866891260. The cubic root of 66326148 is about 404.7885865045.

The spelling of 66326148 in words is "sixty-six million, three hundred twenty-six thousand, one hundred forty-eight".