5661155014020 has 144 divisors (see below), whose sum is σ = 18770522988672. Its totient is φ = 1369672542720.

The previous prime is 5661155013959. The next prime is 5661155014033. The reversal of 5661155014020 is 204105511665.

5661155014020 is a `hidden beast` number, since 5 + 6 + 61 + 1 + 550 + 1 + 40 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1846177 + ... + 3838056.

It is an arithmetic number, because the mean of its divisors is an integer number (130350854088).

Almost surely, 2^{5661155014020} is an apocalyptic number.

It is an amenable number.

5661155014020 is an abundant number, since it is smaller than the sum of its proper divisors (13109367974652).

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

5661155014020 is a wasteful number, since it uses less digits than its factorization.

5661155014020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5684762 (or 5684757 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The spelling of 5661155014020 in words is "five trillion, six hundred sixty-one billion, one hundred fifty-five million, fourteen thousand, twenty".