11051156611 has 32 divisors (see below), whose sum is σ = 12429158400. Its totient is φ = 9741473280.

The previous prime is 11051156609. The next prime is 11051156639. The reversal of 11051156611 is 11665115011.

It is not a de Polignac number, because 11051156611 - 2¹ = 11051156609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11051156611.

It is not an unprimeable number, because it can be changed into a prime (11051106611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17080290 + ... + 17080936.

It is an arithmetic number, because the mean of its divisors is an integer number (388411200).

Almost surely, 2^11051156611 is an apocalyptic number.

11051156611 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11051156611 is a deficient number, since it is larger than the sum of its proper divisors (1378001789).

11051156611 is a wasteful number, since it uses less digits than its factorization.

11051156611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059.

The product of its (nonzero) digits is 900, while the sum is 28.

The spelling of 11051156611 in words is "eleven billion, fifty-one million, one hundred fifty-six thousand, six hundred eleven".