66047130 has 32 divisors (see below), whose sum is σ = 176126400. Its totient is φ = 17612496.

The previous prime is 66047119. The next prime is 66047147. The reversal of 66047130 is 3174066.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 66047094 and 66047103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122040 + ... + 122579.

It is an arithmetic number, because the mean of its divisors is an integer number (5503950).

Almost surely, 2^66047130 is an apocalyptic number.

66047130 is an abundant number, since it is smaller than the sum of its proper divisors (110079270).

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

66047130 is a wasteful number, since it uses less digits than its factorization.

66047130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244635 (or 244629 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 66047130 is about 8126.9385379736. The cubic root of 66047130 is about 404.2201729329.

The spelling of 66047130 in words is "sixty-six million, forty-seven thousand, one hundred thirty".