66067646703 has 16 divisors (see below), whose sum is σ = 93277806336. Its totient is φ = 41451616640.

The previous prime is 66067646629. The next prime is 66067646719. The reversal of 66067646703 is 30764676066.

It is a cyclic number.

It is not a de Polignac number, because 66067646703 - 2⁹ = 66067646191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66067646003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1087900 + ... + 1147022.

It is an arithmetic number, because the mean of its divisors is an integer number (5829862896).

Almost surely, 2^66067646703 is an apocalyptic number.

66067646703 is a deficient number, since it is larger than the sum of its proper divisors (27210159633).

66067646703 is a wasteful number, since it uses less digits than its factorization.

66067646703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81054.

The product of its (nonzero) digits is 4572288, while the sum is 51.

The spelling of 66067646703 in words is "sixty-six billion, sixty-seven million, six hundred forty-six thousand, seven hundred three".