67066736707 has 4 divisors (see below), whose sum is σ = 67594821376. Its totient is φ = 66538652040.

The previous prime is 67066736657. The next prime is 67066736713. The reversal of 67066736707 is 70763766076.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 67066736707 - 2¹⁹ = 67066212419 is a prime.

It is a super-2 number, since 2×67066736707² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67066736777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264042144 + ... + 264042397.

It is an arithmetic number, because the mean of its divisors is an integer number (16898705344).

Almost surely, 2^67066736707 is an apocalyptic number.

67066736707 is a deficient number, since it is larger than the sum of its proper divisors (528084669).

67066736707 is a wasteful number, since it uses less digits than its factorization.

67066736707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528084668.

The product of its (nonzero) digits is 9335088, while the sum is 55.

The spelling of 67066736707 in words is "sixty-seven billion, sixty-six million, seven hundred thirty-six thousand, seven hundred seven".