6671722400 has 108 divisors (see below), whose sum is σ = 18946611558. Its totient is φ = 2287434240.

The previous prime is 6671722373. The next prime is 6671722423. The reversal of 6671722400 is 42271766.

It can be written as a sum of positive squares in 3 ways, for example, as 6186137104 + 485585296 = 78652^2 + 22036^2 .

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 45899 + ... + 124298.

Almost surely, 2^6671722400 is an apocalyptic number.

It is an amenable number.

6671722400 is an abundant number, since it is smaller than the sum of its proper divisors (12274889158).

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

6671722400 is a wasteful number, since it uses less digits than its factorization.

6671722400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170231 (or 170211 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 6671722400 is about 81680.6121426621. The cubic root of 6671722400 is about 1882.5477002681.

The spelling of 6671722400 in words is "six billion, six hundred seventy-one million, seven hundred twenty-two thousand, four hundred".