5641656441 has 4 divisors (see below), whose sum is σ = 7522208592. Its totient is φ = 3761104292.

The previous prime is 5641656401. The next prime is 5641656473. The reversal of 5641656441 is 1446561465.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5641656441 - 2⁷ = 5641656313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5641656393 and 5641656402.

It is not an unprimeable number, because it can be changed into a prime (5641656401) 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, 940276071 + ... + 940276076.

It is an arithmetic number, because the mean of its divisors is an integer number (1880552148).

Almost surely, 2^5641656441 is an apocalyptic number.

It is an amenable number.

5641656441 is a deficient number, since it is larger than the sum of its proper divisors (1880552151).

5641656441 is a wasteful number, since it uses less digits than its factorization.

5641656441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880552150.

The product of its digits is 345600, while the sum is 42.

The square root of 5641656441 is about 75110.9608579201. The cubic root of 5641656441 is about 1780.2003352560.

The spelling of 5641656441 in words is "five billion, six hundred forty-one million, six hundred fifty-six thousand, four hundred forty-one".