6671520252 has 36 divisors (see below), whose sum is σ = 16914193296. Its totient is φ = 2217237120.

The previous prime is 6671520221. The next prime is 6671520259. The reversal of 6671520252 is 2520251766.

6671520252 is a `hidden beast` number, since 66 + 71 + 520 + 2 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×6671520252² = 89018364945692287008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6671520259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 262824 + ... + 287087.

Almost surely, 2^6671520252 is an apocalyptic number.

It is an amenable number.

6671520252 is an abundant number, since it is smaller than the sum of its proper divisors (10242673044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6671520252 is a wasteful number, since it uses less digits than its factorization.

6671520252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550258 (or 550253 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 6671520252 is about 81679.3747037770. The cubic root of 6671520252 is about 1882.5286868324.

The spelling of 6671520252 in words is "six billion, six hundred seventy-one million, five hundred twenty thousand, two hundred fifty-two".