11172561126 has 32 divisors (see below), whose sum is σ = 23672577888. Its totient is φ = 3503185920.

The previous prime is 11172561073. The next prime is 11172561139. The reversal of 11172561126 is 62116527111.

It is a super-2 number, since 2×11172561126² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161806 + ... + 220286.

It is an arithmetic number, because the mean of its divisors is an integer number (739768059).

Almost surely, 2^11172561126 is an apocalyptic number.

11172561126 is an abundant number, since it is smaller than the sum of its proper divisors (12500016762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11172561126 is a wasteful number, since it uses less digits than its factorization.

11172561126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60376.

The product of its digits is 5040, while the sum is 33.

The spelling of 11172561126 in words is "eleven billion, one hundred seventy-two million, five hundred sixty-one thousand, one hundred twenty-six".