66067940263 has 8 divisors (see below), whose sum is σ = 71152331600. Its totient is φ = 60983869248.

The previous prime is 66067940251. The next prime is 66067940317. The reversal of 66067940263 is 36204976066.

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 66067940263 - 2²¹ = 66065843111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66067940203) 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, 508648 + ... + 625186.

It is an arithmetic number, because the mean of its divisors is an integer number (8894041450).

Almost surely, 2^66067940263 is an apocalyptic number.

66067940263 is a deficient number, since it is larger than the sum of its proper divisors (5084391337).

66067940263 is a wasteful number, since it uses less digits than its factorization.

66067940263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160161.

The product of its (nonzero) digits is 1959552, while the sum is 49.

The spelling of 66067940263 in words is "sixty-six billion, sixty-seven million, nine hundred forty thousand, two hundred sixty-three".