5541646021 has 8 divisors (see below), whose sum is σ = 5566264704. Its totient is φ = 5517048000.

The previous prime is 5541645959. The next prime is 5541646031. The reversal of 5541646021 is 1206461455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5541646021 - 2¹⁷ = 5541514949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5541646031) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 804036 + ... + 810898.

It is an arithmetic number, because the mean of its divisors is an integer number (695783088).

Almost surely, 2^5541646021 is an apocalyptic number.

It is an amenable number.

5541646021 is a deficient number, since it is larger than the sum of its proper divisors (24618683).

5541646021 is a wasteful number, since it uses less digits than its factorization.

5541646021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10331.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 5541646021 is about 74442.2327781751. The cubic root of 5541646021 is about 1769.6182713886.

The spelling of 5541646021 in words is "five billion, five hundred forty-one million, six hundred forty-six thousand, twenty-one".