138383863035016 has 8 divisors (see below), whose sum is σ = 259469743190670. Its totient is φ = 69191931517504.

The previous prime is 138383863035013. The next prime is 138383863035017. The reversal of 138383863035016 is 610530368383831.

It can be written as a sum of positive squares in only one way, i.e., 128324626178116 + 10059236856900 = 11328046^2 + 3171630^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (138383863035013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8648991439681 + ... + 8648991439696.

Almost surely, 2^{138383863035016} is an apocalyptic number.

It is an amenable number.

138383863035016 is a deficient number, since it is larger than the sum of its proper divisors (121085880155654).

138383863035016 is a wasteful number, since it uses less digits than its factorization.

138383863035016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17297982879383 (or 17297982879379 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 58.

The spelling of 138383863035016 in words is "one hundred thirty-eight trillion, three hundred eighty-three billion, eight hundred sixty-three million, thirty-five thousand, sixteen".