65860220678 has 16 divisors (see below), whose sum is σ = 112922870784. Its totient is φ = 28220900040.

The previous prime is 65860220651. The next prime is 65860220683. The reversal of 65860220678 is 87602206856.

It is a super-5 number, since 5×65860220678⁵ (a number of 55 digits) contains 55555 as substring.

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, 325100 + ... + 487247.

It is an arithmetic number, because the mean of its divisors is an integer number (7057679424).

Almost surely, 2^65860220678 is an apocalyptic number.

65860220678 is a deficient number, since it is larger than the sum of its proper divisors (47062650106).

65860220678 is a wasteful number, since it uses less digits than its factorization.

65860220678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818147.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 65860220678 in words is "sixty-five billion, eight hundred sixty million, two hundred twenty thousand, six hundred seventy-eight".