66767073345 has 24 divisors (see below), whose sum is σ = 132262393536. Its totient is φ = 30522090528.

The previous prime is 66767073343. The next prime is 66767073377. The reversal of 66767073345 is 54337076766.

It is not a de Polignac number, because 66767073345 - 2¹ = 66767073343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66767073291 and 66767073300.

It is not an unprimeable number, because it can be changed into a prime (66767073341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105979167 + ... + 105979796.

It is an arithmetic number, because the mean of its divisors is an integer number (5510933064).

Almost surely, 2^66767073345 is an apocalyptic number.

It is an amenable number.

66767073345 is a deficient number, since it is larger than the sum of its proper divisors (65495320191).

66767073345 is a wasteful number, since it uses less digits than its factorization.

66767073345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211958981 (or 211958978 counting only the distinct ones).

The product of its (nonzero) digits is 13335840, while the sum is 54.

The spelling of 66767073345 in words is "sixty-six billion, seven hundred sixty-seven million, seventy-three thousand, three hundred forty-five".