11520514644444 has 96 divisors (see below), whose sum is σ = 32203075544640. Its totient is φ = 3540637108224.

The previous prime is 11520514644413. The next prime is 11520514644461. The reversal of 11520514644444 is 44444641502511.

11520514644444 is a `hidden beast` number, since 1 + 1 + 5 + 20 + 5 + 146 + 44 + 444 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 11520514644444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3584109 + ... + 5990564.

It is an arithmetic number, because the mean of its divisors is an integer number (335448703590).

Almost surely, 2^{11520514644444} is an apocalyptic number.

It is an amenable number.

11520514644444 is an abundant number, since it is smaller than the sum of its proper divisors (20682560900196).

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

11520514644444 is a wasteful number, since it uses less digits than its factorization.

11520514644444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9575556 (or 9575548 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 45.

The spelling of 11520514644444 in words is "eleven trillion, five hundred twenty billion, five hundred fourteen million, six hundred forty-four thousand, four hundred forty-four".