11901065449508 has 6 divisors (see below), whose sum is σ = 20826864536646. Its totient is φ = 5950532724752.

The previous prime is 11901065449439. The next prime is 11901065449561. The reversal of 11901065449508 is 80594456010911.

It can be written as a sum of positive squares in only one way, i.e., 10483232279524 + 1417833169984 = 3237782^2 + 1190728^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11901065449508.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1487633181185 + ... + 1487633181192.

It is an arithmetic number, because the mean of its divisors is an integer number (3471144089441).

Almost surely, 2^{11901065449508} is an apocalyptic number.

It is an amenable number.

11901065449508 is a deficient number, since it is larger than the sum of its proper divisors (8925799087138).

11901065449508 is a wasteful number, since it uses less digits than its factorization.

11901065449508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2975266362381 (or 2975266362379 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 53.

The spelling of 11901065449508 in words is "eleven trillion, nine hundred one billion, sixty-five million, four hundred forty-nine thousand, five hundred eight".