66425622 has 32 divisors (see below), whose sum is σ = 139484160. Its totient is φ = 21060960.

The previous prime is 66425621. The next prime is 66425641. The reversal of 66425622 is 22652466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66425621) 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, 7948 + ... + 14000.

It is an arithmetic number, because the mean of its divisors is an integer number (4358880).

Almost surely, 2^66425622 is an apocalyptic number.

66425622 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

66425622 is an abundant number, since it is smaller than the sum of its proper divisors (73058538).

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

66425622 is a wasteful number, since it uses less digits than its factorization.

66425622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6148.

The product of its digits is 34560, while the sum is 33.

The square root of 66425622 is about 8150.1915314918. The cubic root of 66425622 is about 404.9908487492.

The spelling of 66425622 in words is "sixty-six million, four hundred twenty-five thousand, six hundred twenty-two".