11081551320 has 192 divisors, whose sum is σ = 43581395520. Its totient is φ = 2383921152.

The previous prime is 11081551267. The next prime is 11081551333. The reversal of 11081551320 is 2315518011.

11081551320 is a `hidden beast` number, since 1 + 1 + 0 + 81 + 551 + 32 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 86497 + ... + 172176.

It is an arithmetic number, because the mean of its divisors is an integer number (226986435).

Almost surely, 2^11081551320 is an apocalyptic number.

11081551320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11081551320 is an abundant number, since it is smaller than the sum of its proper divisors (32499844200).

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

11081551320 is a wasteful number, since it uses less digits than its factorization.

11081551320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258714 (or 258707 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

The spelling of 11081551320 in words is "eleven billion, eighty-one million, five hundred fifty-one thousand, three hundred twenty".