138037016002 has 4 divisors (see below), whose sum is σ = 207055524006. Its totient is φ = 69018508000.

The previous prime is 138037015981. The next prime is 138037016003. The reversal of 138037016002 is 200610730831.

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

It can be written as a sum of positive squares in only one way, i.e., 75492508081 + 62544507921 = 274759^2 + 250089^2 .

It is not an unprimeable number, because it can be changed into a prime (138037016003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34509253999 + ... + 34509254002.

Almost surely, 2^138037016002 is an apocalyptic number.

138037016002 is a deficient number, since it is larger than the sum of its proper divisors (69018508004).

138037016002 is an equidigital number, since it uses as much as digits as its factorization.

138037016002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69018508003.

The product of its (nonzero) digits is 6048, while the sum is 31.

Adding to 138037016002 its reverse (200610730831), we get a palindrome (338647746833).

The spelling of 138037016002 in words is "one hundred thirty-eight billion, thirty-seven million, sixteen thousand, two".