11074747561520 has 20 divisors (see below), whose sum is σ = 25748788080720. Its totient is φ = 4429899024576.

The previous prime is 11074747561519. The next prime is 11074747561523. The reversal of 11074747561520 is 2516574747011.

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

It is not an unprimeable number, because it can be changed into a prime (11074747561523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69217172180 + ... + 69217172339.

It is an arithmetic number, because the mean of its divisors is an integer number (1287439404036).

Almost surely, 2^{11074747561520} is an apocalyptic number.

11074747561520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11074747561520 is an abundant number, since it is smaller than the sum of its proper divisors (14674040519200).

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

11074747561520 is a wasteful number, since it uses less digits than its factorization.

11074747561520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138434344532 (or 138434344526 counting only the distinct ones).

The product of its (nonzero) digits is 1646400, while the sum is 50.

The spelling of 11074747561520 in words is "eleven trillion, seventy-four billion, seven hundred forty-seven million, five hundred sixty-one thousand, five hundred twenty".