53665920016 has 10 divisors (see below), whose sum is σ = 103977720062. Its totient is φ = 26832960000.

The previous prime is 53665919981. The next prime is 53665920017. The reversal of 53665920016 is 61002956635.

It can be written as a sum of positive squares in only one way, i.e., 53451590416 + 214329600 = 231196^2 + 14640^2 .

It is not an unprimeable number, because it can be changed into a prime (53665920017) 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 as a sum of consecutive naturals, namely, 1677059985 + ... + 1677060016.

Almost surely, 2^53665920016 is an apocalyptic number.

It is an amenable number.

53665920016 is a deficient number, since it is larger than the sum of its proper divisors (50311800046).

53665920016 is a wasteful number, since it uses less digits than its factorization.

53665920016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3354120009 (or 3354120003 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 43.

The spelling of 53665920016 in words is "fifty-three billion, six hundred sixty-five million, nine hundred twenty thousand, sixteen".