66396035 has 4 divisors (see below), whose sum is σ = 79675248. Its totient is φ = 53116824.

The previous prime is 66396023. The next prime is 66396061. The reversal of 66396035 is 53069366.

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 66396035 - 2⁶ = 66395971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66396035.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6639599 + ... + 6639608.

It is an arithmetic number, because the mean of its divisors is an integer number (19918812).

Almost surely, 2^66396035 is an apocalyptic number.

66396035 is a deficient number, since it is larger than the sum of its proper divisors (13279213).

66396035 is a wasteful number, since it uses less digits than its factorization.

66396035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13279212.

The product of its (nonzero) digits is 87480, while the sum is 38.

The square root of 66396035 is about 8148.3762186094. The cubic root of 66396035 is about 404.9307100889.

The spelling of 66396035 in words is "sixty-six million, three hundred ninety-six thousand, thirty-five".