6671561452 has 12 divisors (see below), whose sum is σ = 11923642080. Its totient is φ = 3264806576.

The previous prime is 6671561443. The next prime is 6671561453. The reversal of 6671561452 is 2541651766.

It is a junction number, because it is equal to n+sod(n) for n = 6671561399 and 6671561408.

It is not an unprimeable number, because it can be changed into a prime (6671561453) 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, 17743327 + ... + 17743702.

It is an arithmetic number, because the mean of its divisors is an integer number (993636840).

Almost surely, 2^6671561452 is an apocalyptic number.

It is an amenable number.

6671561452 is a deficient number, since it is larger than the sum of its proper divisors (5252080628).

6671561452 is a wasteful number, since it uses less digits than its factorization.

6671561452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35487080 (or 35487078 counting only the distinct ones).

The product of its digits is 302400, while the sum is 43.

The square root of 6671561452 is about 81679.6269090402. The cubic root of 6671561452 is about 1882.5325620122.

The spelling of 6671561452 in words is "six billion, six hundred seventy-one million, five hundred sixty-one thousand, four hundred fifty-two".