65670066 has 48 divisors (see below), whose sum is σ = 177398208. Its totient is φ = 17056800.

The previous prime is 65670053. The next prime is 65670071. The reversal of 65670066 is 66007656.

It is a self number, because there is not a number n which added to its sum of digits gives 65670066.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22305 + ... + 25076.

It is an arithmetic number, because the mean of its divisors is an integer number (3695796).

Almost surely, 2^65670066 is an apocalyptic number.

65670066 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

65670066 is an abundant number, since it is smaller than the sum of its proper divisors (111728142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65670066 is a wasteful number, since it uses less digits than its factorization.

65670066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47407 (or 47404 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 65670066 is about 8103.7069295477. The cubic root of 65670066 is about 403.4494715223.

The spelling of 65670066 in words is "sixty-five million, six hundred seventy thousand, sixty-six".