6671580049 has 4 divisors (see below), whose sum is σ = 6678904320. Its totient is φ = 6664255780.

The previous prime is 6671580043. The next prime is 6671580053. The reversal of 6671580049 is 9400851766.

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: 9400851766 = 2 ⋅4700425883.

It is a cyclic number.

It is not a de Polignac number, because 6671580049 - 2¹³ = 6671571857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6671579990 and 6671580008.

It is not an unprimeable number, because it can be changed into a prime (6671580043) 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, 3660769 + ... + 3662590.

It is an arithmetic number, because the mean of its divisors is an integer number (1669726080).

Almost surely, 2^6671580049 is an apocalyptic number.

It is an amenable number.

6671580049 is a deficient number, since it is larger than the sum of its proper divisors (7324271).

6671580049 is an equidigital number, since it uses as much as digits as its factorization.

6671580049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7324270.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 6671580049 is about 81679.7407500783. The cubic root of 6671580049 is about 1882.5343111992.

The spelling of 6671580049 in words is "six billion, six hundred seventy-one million, five hundred eighty thousand, forty-nine".