66741395 has 16 divisors (see below), whose sum is σ = 96349440. Its totient is φ = 43356384.

The previous prime is 66741391. The next prime is 66741401. The reversal of 66741395 is 59314766.

It is a cyclic number.

It is not a de Polignac number, because 66741395 - 2² = 66741391 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66741391) 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, 49517 + ... + 50846.

It is an arithmetic number, because the mean of its divisors is an integer number (6021840).

Almost surely, 2^66741395 is an apocalyptic number.

66741395 is a deficient number, since it is larger than the sum of its proper divisors (29608045).

66741395 is a wasteful number, since it uses less digits than its factorization.

66741395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100394.

The product of its digits is 136080, while the sum is 41.

The square root of 66741395 is about 8169.5406847631. The cubic root of 66741395 is about 405.6315807379.

The spelling of 66741395 in words is "sixty-six million, seven hundred forty-one thousand, three hundred ninety-five".