66353848 has 64 divisors (see below), whose sum is σ = 141419520. Its totient is φ = 28924800.

The previous prime is 66353821. The next prime is 66353849. The reversal of 66353848 is 84835366.

Its product of digits (414720) is a multiple of the sum of its prime divisors (384).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66353849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252165 + ... + 252427.

It is an arithmetic number, because the mean of its divisors is an integer number (2209680).

Almost surely, 2^66353848 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 66353848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70709760).

66353848 is an abundant number, since it is smaller than the sum of its proper divisors (75065672).

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

66353848 is a wasteful number, since it uses less digits than its factorization.

66353848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 384 counting only the distinct ones).

The product of its digits is 414720, while the sum is 43.

The square root of 66353848 is about 8145.7871320088. The cubic root of 66353848 is about 404.8449297096.

The spelling of 66353848 in words is "sixty-six million, three hundred fifty-three thousand, eight hundred forty-eight".