66196946346 has 192 divisors, whose sum is σ = 149378826240. Its totient is φ = 19495365120.

The previous prime is 66196946213. The next prime is 66196946353. The reversal of 66196946346 is 64364969166.

It is a self number, because there is not a number n which added to its sum of digits gives 66196946346.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 521235735 + ... + 521235861.

It is an arithmetic number, because the mean of its divisors is an integer number (778014720).

Almost surely, 2^66196946346 is an apocalyptic number.

66196946346 is an abundant number, since it is smaller than the sum of its proper divisors (83181879894).

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

66196946346 is a wasteful number, since it uses less digits than its factorization.

66196946346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349 (or 312 counting only the distinct ones).

The product of its digits is 30233088, while the sum is 60.

The spelling of 66196946346 in words is "sixty-six billion, one hundred ninety-six million, nine hundred forty-six thousand, three hundred forty-six".