66273130 has 32 divisors (see below), whose sum is σ = 148728960. Its totient is φ = 20656320.

The previous prime is 66273127. The next prime is 66273203. The reversal of 66273130 is 3137266.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42265 + ... + 43804.

It is an arithmetic number, because the mean of its divisors is an integer number (4647780).

Almost surely, 2^66273130 is an apocalyptic number.

66273130 is an abundant number, since it is smaller than the sum of its proper divisors (82455830).

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

66273130 is a wasteful number, since it uses less digits than its factorization.

66273130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86094.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 66273130 is about 8140.8310386594. The cubic root of 66273130 is about 404.6807014406.

The spelling of 66273130 in words is "sixty-six million, two hundred seventy-three thousand, one hundred thirty".