65665633702076 has 24 divisors (see below), whose sum is σ = 116127797551584. Its totient is φ = 32486797370880.

The previous prime is 65665633702073. The next prime is 65665633702091. The reversal of 65665633702076 is 67020733656656.

It is a super-2 number, since 2×65665633702076² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65665633702073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66307565 + ... + 67290596.

It is an arithmetic number, because the mean of its divisors is an integer number (4838658231316).

Almost surely, 2^{65665633702076} is an apocalyptic number.

It is an amenable number.

65665633702076 is a deficient number, since it is larger than the sum of its proper divisors (50462163849508).

65665633702076 is a wasteful number, since it uses less digits than its factorization.

65665633702076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133599461 (or 133599459 counting only the distinct ones).

The product of its (nonzero) digits is 171460800, while the sum is 62.

The spelling of 65665633702076 in words is "sixty-five trillion, six hundred sixty-five billion, six hundred thirty-three million, seven hundred two thousand, seventy-six".