66287130 has 64 divisors (see below), whose sum is σ = 195810048. Its totient is φ = 13985280.

The previous prime is 66287129. The next prime is 66287141. The reversal of 66287130 is 3178266.

It is a junction number, because it is equal to n+sod(n) for n = 66287091 and 66287100.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9411 + ... + 14870.

It is an arithmetic number, because the mean of its divisors is an integer number (3059532).

Almost surely, 2^66287130 is an apocalyptic number.

66287130 is an abundant number, since it is smaller than the sum of its proper divisors (129522918).

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

66287130 is a wasteful number, since it uses less digits than its factorization.

66287130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24311.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 66287130 is about 8141.6908563271. The cubic root of 66287130 is about 404.7091952959.

The spelling of 66287130 in words is "sixty-six million, two hundred eighty-seven thousand, one hundred thirty".