1966612864323 has 8 divisors (see below), whose sum is σ = 2658070355728. Its totient is φ = 1293115307904.

The previous prime is 1966612864319. The next prime is 1966612864331. The reversal of 1966612864323 is 3234682166691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1966612864323 - 2² = 1966612864319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1966612864393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4489983490 + ... + 4489983927.

It is an arithmetic number, because the mean of its divisors is an integer number (332258794466).

Almost surely, 2^{1966612864323} is an apocalyptic number.

1966612864323 is a deficient number, since it is larger than the sum of its proper divisors (691457491405).

1966612864323 is an equidigital number, since it uses as much as digits as its factorization.

1966612864323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8979967493.

The product of its digits is 13436928, while the sum is 57.

The spelling of 1966612864323 in words is "one trillion, nine hundred sixty-six billion, six hundred twelve million, eight hundred sixty-four thousand, three hundred twenty-three".