11000155065520 has 20 divisors (see below), whose sum is σ = 25575360527520. Its totient is φ = 4400062026176.

The previous prime is 11000155065481. The next prime is 11000155065569. The reversal of 11000155065520 is 2556055100011.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×11000155065520² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68750969080 + ... + 68750969239.

It is an arithmetic number, because the mean of its divisors is an integer number (1278768026376).

Almost surely, 2^{11000155065520} is an apocalyptic number.

11000155065520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11000155065520 is an abundant number, since it is smaller than the sum of its proper divisors (14575205462000).

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

11000155065520 is a wasteful number, since it uses less digits than its factorization.

11000155065520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137501938332 (or 137501938326 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 31.

The spelling of 11000155065520 in words is "eleven trillion, one hundred fifty-five million, sixty-five thousand, five hundred twenty".