53317286661 has 8 divisors (see below), whose sum is σ = 71092431424. Its totient is φ = 35543499840.

The previous prime is 53317286641. The next prime is 53317286689. The reversal of 53317286661 is 16668271335.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53317286661 - 2¹⁴ = 53317270277 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53317286661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53317286641) by changing a digit.

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, 244036 + ... + 407661.

It is an arithmetic number, because the mean of its divisors is an integer number (8886553928).

Almost surely, 2^53317286661 is an apocalyptic number.

It is an amenable number.

53317286661 is a deficient number, since it is larger than the sum of its proper divisors (17775144763).

53317286661 is a wasteful number, since it uses less digits than its factorization.

53317286661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678971.

The product of its digits is 1088640, while the sum is 48.

The spelling of 53317286661 in words is "fifty-three billion, three hundred seventeen million, two hundred eighty-six thousand, six hundred sixty-one".