11061621144 has 80 divisors (see below), whose sum is σ = 35408907600. Its totient is φ = 3160461888.

The previous prime is 11061621113. The next prime is 11061621157. The reversal of 11061621144 is 44112616011.

11061621144 is a `hidden beast` number, since 1 + 1 + 0 + 616 + 2 + 1 + 1 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1214779 + ... + 1223850.

It is an arithmetic number, because the mean of its divisors is an integer number (442611345).

Almost surely, 2^11061621144 is an apocalyptic number.

11061621144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11061621144 is an abundant number, since it is smaller than the sum of its proper divisors (24347286456).

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

11061621144 is a wasteful number, since it uses less digits than its factorization.

11061621144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2438654 (or 2438641 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The spelling of 11061621144 in words is "eleven billion, sixty-one million, six hundred twenty-one thousand, one hundred forty-four".