67066704005 has 24 divisors (see below), whose sum is σ = 93957716088. Its totient is φ = 45822526848.

The previous prime is 67066703999. The next prime is 67066704007. The reversal of 67066704005 is 50040766076.

It can be written as a sum of positive squares in 4 ways, for example, as 105308644 + 66961395361 = 10262^2 + 258769^2 .

It is not a de Polignac number, because 67066704005 - 2²⁶ = 66999595141 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 (67066704007) 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, 426254 + ... + 561983.

It is an arithmetic number, because the mean of its divisors is an integer number (3914904837).

Almost surely, 2^67066704005 is an apocalyptic number.

It is an amenable number.

67066704005 is a deficient number, since it is larger than the sum of its proper divisors (26891012083).

67066704005 is a wasteful number, since it uses less digits than its factorization.

67066704005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988533 (or 988526 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 67066704005 in words is "sixty-seven billion, sixty-six million, seven hundred four thousand, five".