66241143210 has 64 divisors (see below), whose sum is σ = 173620869120. Its totient is φ = 16040911680.

The previous prime is 66241143209. The next prime is 66241143211. The reversal of 66241143210 is 1234114266.

It is an interprime number because it is at equal distance from previous prime (66241143209) and next prime (66241143211).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (66241143211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 194059 + ... + 412481.

It is an arithmetic number, because the mean of its divisors is an integer number (2712826080).

Almost surely, 2^66241143210 is an apocalyptic number.

66241143210 is an abundant number, since it is smaller than the sum of its proper divisors (107379725910).

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

66241143210 is a wasteful number, since it uses less digits than its factorization.

66241143210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219363.

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 66241143210 its reverse (1234114266), we get a palindrome (67475257476).

The spelling of 66241143210 in words is "sixty-six billion, two hundred forty-one million, one hundred forty-three thousand, two hundred ten".