11051655044240 has 80 divisors (see below), whose sum is σ = 27049343790720. Its totient is φ = 4187705702400.

The previous prime is 11051655044191. The next prime is 11051655044249. The reversal of 11051655044240 is 4244055615011.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 11051655044194 and 11051655044203.

It is not an unprimeable number, because it can be changed into a prime (11051655044249) by changing a digit.

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, 22384040 + ... + 22872440.

It is an arithmetic number, because the mean of its divisors is an integer number (338116797384).

Almost surely, 2^{11051655044240} is an apocalyptic number.

11051655044240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11051655044240 is an abundant number, since it is smaller than the sum of its proper divisors (15997688746480).

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

11051655044240 is a wasteful number, since it uses less digits than its factorization.

11051655044240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503320 (or 503314 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 38.

The spelling of 11051655044240 in words is "eleven trillion, fifty-one billion, six hundred fifty-five million, forty-four thousand, two hundred forty".