66420071373343 has 8 divisors (see below), whose sum is σ = 67080480108336. Its totient is φ = 65759717232000.

The previous prime is 66420071373329. The next prime is 66420071373347. The reversal of 66420071373343 is 34337317002466.

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

It is a cyclic number.

It is not a de Polignac number, because 66420071373343 - 2⁵ = 66420071373311 is a prime.

It is a super-3 number, since 3×66420071373343³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66420071373347) 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, 11200893 + ... + 16071718.

It is an arithmetic number, because the mean of its divisors is an integer number (8385060013542).

Almost surely, 2^{66420071373343} is an apocalyptic number.

66420071373343 is a deficient number, since it is larger than the sum of its proper divisors (660408734993).

66420071373343 is a wasteful number, since it uses less digits than its factorization.

66420071373343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27296825.

The product of its (nonzero) digits is 4572288, while the sum is 49.

The spelling of 66420071373343 in words is "sixty-six trillion, four hundred twenty billion, seventy-one million, three hundred seventy-three thousand, three hundred forty-three".