11211075707656 has 64 divisors (see below), whose sum is σ = 23064461640000. Its totient is φ = 5066462472960.

The previous prime is 11211075707653. The next prime is 11211075707669. The reversal of 11211075707656 is 65670757011211.

It is not an unprimeable number, because it can be changed into a prime (11211075707653) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 81794670 + ... + 81931618.

It is an arithmetic number, because the mean of its divisors is an integer number (360382213125).

Almost surely, 2^{11211075707656} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11211075707656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11532230820000).

11211075707656 is an abundant number, since it is smaller than the sum of its proper divisors (11853385932344).

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

11211075707656 is a wasteful number, since it uses less digits than its factorization.

11211075707656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142342 (or 142338 counting only the distinct ones).

The product of its (nonzero) digits is 617400, while the sum is 49.

The spelling of 11211075707656 in words is "eleven trillion, two hundred eleven billion, seventy-five million, seven hundred seven thousand, six hundred fifty-six".