68216069553 has 16 divisors (see below), whose sum is σ = 91905877056. Its totient is φ = 45001958400.

The previous prime is 68216069539. The next prime is 68216069561. The reversal of 68216069553 is 35596061286.

It is not a de Polignac number, because 68216069553 - 2⁸ = 68216069297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68216069496 and 68216069505.

It is not an unprimeable number, because it can be changed into a prime (68216069513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2732578 + ... + 2757428.

It is an arithmetic number, because the mean of its divisors is an integer number (5744117316).

Almost surely, 2^68216069553 is an apocalyptic number.

It is an amenable number.

68216069553 is a deficient number, since it is larger than the sum of its proper divisors (23689807503).

68216069553 is a wasteful number, since it uses less digits than its factorization.

68216069553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34384.

The product of its (nonzero) digits is 2332800, while the sum is 51.

The spelling of 68216069553 in words is "sixty-eight billion, two hundred sixteen million, sixty-nine thousand, five hundred fifty-three".