66465835 has 8 divisors (see below), whose sum is σ = 84450816. Its totient is φ = 50044800.

The previous prime is 66465811. The next prime is 66465851. The reversal of 66465835 is 53856466.

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

It is not a de Polignac number, because 66465835 - 2²¹ = 64368683 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66465791 and 66465800.

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, 390891 + ... + 391060.

It is an arithmetic number, because the mean of its divisors is an integer number (10556352).

Almost surely, 2^66465835 is an apocalyptic number.

66465835 is a deficient number, since it is larger than the sum of its proper divisors (17984981).

66465835 is a wasteful number, since it uses less digits than its factorization.

66465835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781973.

The product of its digits is 518400, while the sum is 43.

The square root of 66465835 is about 8152.6581554730. The cubic root of 66465835 is about 405.0725572386.

The spelling of 66465835 in words is "sixty-six million, four hundred sixty-five thousand, eight hundred thirty-five".