11017861156 has 27 divisors (see below), whose sum is σ = 19935071793. Its totient is φ = 5328074160.

The previous prime is 11017861133. The next prime is 11017861157. The reversal of 11017861156 is 65116871011.

The square root of 11017861156 is 104966.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4197744100 + 6820117056 = 64790^2 + 82584^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11017861157) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6507046 + ... + 6508738.

Almost surely, 2^11017861156 is an apocalyptic number.

11017861156 is the 104966-th square number.

It is an amenable number.

11017861156 is a deficient number, since it is larger than the sum of its proper divisors (8917210637).

11017861156 is an frugal number, since it uses more digits than its factorization.

11017861156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3452 (or 1726 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 37.

The spelling of 11017861156 in words is "eleven billion, seventeen million, eight hundred sixty-one thousand, one hundred fifty-six".