66055170 has 16 divisors (see below), whose sum is σ = 158532480. Its totient is φ = 17614704.

The previous prime is 66055159. The next prime is 66055189. The reversal of 66055170 is 7155066.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2201839 = 66055170 / (6 + 6 + 0 + 5 + 5 + 1 + 7 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1100890 + ... + 1100949.

It is an arithmetic number, because the mean of its divisors is an integer number (9908280).

Almost surely, 2^66055170 is an apocalyptic number.

66055170 is an abundant number, since it is smaller than the sum of its proper divisors (92477310).

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

66055170 is a wasteful number, since it uses less digits than its factorization.

66055170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2201849.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 66055170 is about 8127.4331741331. The cubic root of 66055170 is about 404.2365743437.

The spelling of 66055170 in words is "sixty-six million, fifty-five thousand, one hundred seventy".