65870116555 has 4 divisors (see below), whose sum is σ = 79044139872. Its totient is φ = 52696093240.

The previous prime is 65870116549. The next prime is 65870116567. The reversal of 65870116555 is 55561107856.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 65870116555 - 2³ = 65870116547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65870116499 and 65870116508.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6587011651 + ... + 6587011660.

It is an arithmetic number, because the mean of its divisors is an integer number (19761034968).

Almost surely, 2^65870116555 is an apocalyptic number.

65870116555 is a deficient number, since it is larger than the sum of its proper divisors (13174023317).

65870116555 is a wasteful number, since it uses less digits than its factorization.

65870116555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13174023316.

The product of its (nonzero) digits is 1260000, while the sum is 49.

The spelling of 65870116555 in words is "sixty-five billion, eight hundred seventy million, one hundred sixteen thousand, five hundred fifty-five".