6631372801 has 8 divisors (see below), whose sum is σ = 7022177064. Its totient is φ = 6240648960.

The previous prime is 6631372763. The next prime is 6631372819. The reversal of 6631372801 is 1082731366.

It can be written as a sum of positive squares in 4 ways, for example, as 169624576 + 6461748225 = 13024^2 + 80385^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6631372801 - 2¹⁵ = 6631340033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6631372861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266571 + ... + 290383.

It is an arithmetic number, because the mean of its divisors is an integer number (877772133).

Almost surely, 2^6631372801 is an apocalyptic number.

It is an amenable number.

6631372801 is a deficient number, since it is larger than the sum of its proper divisors (390804263).

6631372801 is a wasteful number, since it uses less digits than its factorization.

6631372801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40211.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 6631372801 is about 81433.2413759885. The cubic root of 6631372801 is about 1878.7448995033.

The spelling of 6631372801 in words is "six billion, six hundred thirty-one million, three hundred seventy-two thousand, eight hundred one".