108905088506 has 12 divisors (see below), whose sum is σ = 165690865626. Its totient is φ = 53685602040.

The previous prime is 108905088499. The next prime is 108905088517. The reversal of 108905088506 is 605880509801.

It can be written as a sum of positive squares in only one way, i.e., 103400190481 + 5504898025 = 321559^2 + 74195^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5390885 + ... + 5411048.

Almost surely, 2^108905088506 is an apocalyptic number.

108905088506 is a deficient number, since it is larger than the sum of its proper divisors (56785777120).

108905088506 is an equidigital number, since it uses as much as digits as its factorization.

108905088506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10802077 (or 10802006 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 50.

The spelling of 108905088506 in words is "one hundred eight billion, nine hundred five million, eighty-eight thousand, five hundred six".