138856332545106 has 32 divisors (see below), whose sum is σ = 302995437818688. Its totient is φ = 42072653360640.

The previous prime is 138856332545089. The next prime is 138856332545111. The reversal of 138856332545106 is 601545233658831.

It is a self number, because there is not a number n which added to its sum of digits gives 138856332545106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125022135 + ... + 126127898.

It is an arithmetic number, because the mean of its divisors is an integer number (9468607431834).

Almost surely, 2^{138856332545106} is an apocalyptic number.

138856332545106 is an abundant number, since it is smaller than the sum of its proper divisors (164139105273582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138856332545106 is a wasteful number, since it uses less digits than its factorization.

138856332545106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251158426.

The product of its (nonzero) digits is 62208000, while the sum is 60.

The spelling of 138856332545106 in words is "one hundred thirty-eight trillion, eight hundred fifty-six billion, three hundred thirty-two million, five hundred forty-five thousand, one hundred six".