66421096 has 32 divisors (see below), whose sum is σ = 146926080. Its totient is φ = 27547200.

The previous prime is 66421073. The next prime is 66421099. The reversal of 66421096 is 69012466.

66421096 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (66421099) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 17395 + ... + 20866.

It is an arithmetic number, because the mean of its divisors is an integer number (4591440).

Almost surely, 2^66421096 is an apocalyptic number.

It is an amenable number.

66421096 is an abundant number, since it is smaller than the sum of its proper divisors (80504984).

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

66421096 is a wasteful number, since it uses less digits than its factorization.

66421096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38305 (or 38301 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 66421096 is about 8149.9138645755. The cubic root of 66421096 is about 404.9816503397.

The spelling of 66421096 in words is "sixty-six million, four hundred twenty-one thousand, ninety-six".