66413695 has 8 divisors (see below), whose sum is σ = 80657136. Its totient is φ = 52490496.

The previous prime is 66413657. The next prime is 66413707. The reversal of 66413695 is 59631466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66413695 - 2¹⁹ = 65889407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79602 + ... + 80431.

It is an arithmetic number, because the mean of its divisors is an integer number (10082142).

Almost surely, 2^66413695 is an apocalyptic number.

66413695 is a deficient number, since it is larger than the sum of its proper divisors (14243441).

66413695 is a wasteful number, since it uses less digits than its factorization.

66413695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160121.

The product of its digits is 116640, while the sum is 40.

The square root of 66413695 is about 8149.4597980480. The cubic root of 66413695 is about 404.9666080278.

The spelling of 66413695 in words is "sixty-six million, four hundred thirteen thousand, six hundred ninety-five".