6669541141 has 4 divisors (see below), whose sum is σ = 6671996800. Its totient is φ = 6667085484.

The previous prime is 6669541091. The next prime is 6669541199. The reversal of 6669541141 is 1411459666.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1411459666 = 2 ⋅705729833.

It is a cyclic number.

It is not a de Polignac number, because 6669541141 - 2⁹ = 6669540629 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 (6669547141) 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, 1223751 + ... + 1229188.

It is an arithmetic number, because the mean of its divisors is an integer number (1667999200).

Almost surely, 2^6669541141 is an apocalyptic number.

It is an amenable number.

6669541141 is a deficient number, since it is larger than the sum of its proper divisors (2455659).

6669541141 is a wasteful number, since it uses less digits than its factorization.

6669541141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2455658.

The product of its digits is 155520, while the sum is 43.

The square root of 6669541141 is about 81667.2586842487. The cubic root of 6669541141 is about 1882.3425172855.

The spelling of 6669541141 in words is "six billion, six hundred sixty-nine million, five hundred forty-one thousand, one hundred forty-one".