65671682772 has 24 divisors (see below), whose sum is σ = 153245500576. Its totient is φ = 21888907488.

The previous prime is 65671682701. The next prime is 65671682851. The reversal of 65671682772 is 27728617656.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35518 + ... + 364149.

Almost surely, 2^65671682772 is an apocalyptic number.

It is an amenable number.

65671682772 is an abundant number, since it is smaller than the sum of its proper divisors (87573817804).

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

65671682772 is a wasteful number, since it uses less digits than its factorization.

65671682772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413367 (or 413365 counting only the distinct ones).

The product of its digits is 11854080, while the sum is 57.

The spelling of 65671682772 in words is "sixty-five billion, six hundred seventy-one million, six hundred eighty-two thousand, seven hundred seventy-two".