11541620044 has 12 divisors (see below), whose sum is σ = 20849378368. Its totient is φ = 5584654800.

The previous prime is 11541620039. The next prime is 11541620047. The reversal of 11541620044 is 44002614511.

It is a junction number, because it is equal to n+sod(n) for n = 11541619994 and 11541620021.

It is not an unprimeable number, because it can be changed into a prime (11541620047) 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, 46538667 + ... + 46538914.

Almost surely, 2^11541620044 is an apocalyptic number.

It is an amenable number.

11541620044 is a deficient number, since it is larger than the sum of its proper divisors (9307758324).

11541620044 is a wasteful number, since it uses less digits than its factorization.

11541620044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93077616 (or 93077614 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

It can be divided in two parts, 115416 and 20044, that added together give a triangular number (135460 = T₅₂₀).

The spelling of 11541620044 in words is "eleven billion, five hundred forty-one million, six hundred twenty thousand, forty-four".