11056120171520 has 88 divisors (see below), whose sum is σ = 26523633777984. Its totient is φ = 4422130958336.

The previous prime is 11056120171519. The next prime is 11056120171573. The reversal of 11056120171520 is 2517102165011.

It is a super-2 number, since 2×11056120171520² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79274969 + ... + 79414311.

Almost surely, 2^{11056120171520} is an apocalyptic number.

11056120171520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11056120171520 is an abundant number, since it is smaller than the sum of its proper divisors (15467513606464).

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

11056120171520 is a wasteful number, since it uses less digits than its factorization.

11056120171520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154865 (or 154847 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 32.

The spelling of 11056120171520 in words is "eleven trillion, fifty-six billion, one hundred twenty million, one hundred seventy-one thousand, five hundred twenty".