66229080 has 32 divisors (see below), whose sum is σ = 198687600. Its totient is φ = 17661056.

The previous prime is 66229067. The next prime is 66229081. The reversal of 66229080 is 8092266.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66229081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275835 + ... + 276074.

Almost surely, 2^66229080 is an apocalyptic number.

66229080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66229080 is an abundant number, since it is smaller than the sum of its proper divisors (132458520).

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

66229080 is a wasteful number, since it uses less digits than its factorization.

66229080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551923 (or 551919 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 66229080 is about 8138.1250911988. The cubic root of 66229080 is about 404.5910213753.

The spelling of 66229080 in words is "sixty-six million, two hundred twenty-nine thousand, eighty".