66146862630 has 16 divisors (see below), whose sum is σ = 158752470384. Its totient is φ = 17639163360.

The previous prime is 66146862601. The next prime is 66146862641. The reversal of 66146862630 is 3626864166.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 66146862630.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1102447681 + ... + 1102447740.

It is an arithmetic number, because the mean of its divisors is an integer number (9922029399).

Almost surely, 2^66146862630 is an apocalyptic number.

66146862630 is an abundant number, since it is smaller than the sum of its proper divisors (92605607754).

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

66146862630 is a wasteful number, since it uses less digits than its factorization.

66146862630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2204895431.

The product of its (nonzero) digits is 1492992, while the sum is 48.

The spelling of 66146862630 in words is "sixty-six billion, one hundred forty-six million, eight hundred sixty-two thousand, six hundred thirty".