11611103955049 has 9 divisors (see below), whose sum is σ = 11760213060183. Its totient is φ = 11463862170072.

The previous prime is 11611103955037. The next prime is 11611103955083. The reversal of 11611103955049 is 94055930111611.

The square root of 11611103955049 is 3407507.

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

11611103955049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2555410059225 + 9055693895824 = 1598565^2 + 3009268^2 .

It is not a de Polignac number, because 11611103955049 - 2¹⁹ = 11611103430761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11611103955149) 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, 269171487 + ... + 269214619.

Almost surely, 2^{11611103955049} is an apocalyptic number.

11611103955049 is the 3407507-th square number.

11611103955049 is the 1703754-th centered octagonal number.

It is an amenable number.

11611103955049 is a deficient number, since it is larger than the sum of its proper divisors (149109105134).

11611103955049 is an frugal number, since it uses more digits than its factorization.

11611103955049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86424 (or 43212 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 46.

The spelling of 11611103955049 in words is "eleven trillion, six hundred eleven billion, one hundred three million, nine hundred fifty-five thousand, forty-nine".