66424050 has 288 divisors, whose sum is σ = 233985024. Its totient is φ = 13608000.

The previous prime is 66424027. The next prime is 66424081. The reversal of 66424050 is 5042466.

It is a happy number.

It is a hoax number, since the sum of its digits (27) 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 (27).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 935515 + ... + 935585.

It is an arithmetic number, because the mean of its divisors is an integer number (812448).

Almost surely, 2^66424050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66424050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116992512).

66424050 is an abundant number, since it is smaller than the sum of its proper divisors (167560974).

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

66424050 is a wasteful number, since it uses less digits than its factorization.

66424050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 66424050 is about 8150.0950914698. The cubic root of 66424050 is about 404.9876539446.

The spelling of 66424050 in words is "sixty-six million, four hundred twenty-four thousand, fifty".