6600864131 has 4 divisors (see below), whose sum is σ = 6813795264. Its totient is φ = 6387933000.

The previous prime is 6600864113. The next prime is 6600864163. The reversal of 6600864131 is 1314680066.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6600864131 is a prime.

It is a super-2 number, since 2×6600864131² = 87142814551844770322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6600864091 and 6600864100.

It is not an unprimeable number, because it can be changed into a prime (6600864031) 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, 106465520 + ... + 106465581.

It is an arithmetic number, because the mean of its divisors is an integer number (1703448816).

Almost surely, 2^6600864131 is an apocalyptic number.

6600864131 is a deficient number, since it is larger than the sum of its proper divisors (212931133).

6600864131 is a wasteful number, since it uses less digits than its factorization.

6600864131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212931132.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 6600864131 is about 81245.7022309488. The cubic root of 6600864131 is about 1875.8593163119.

The spelling of 6600864131 in words is "six billion, six hundred million, eight hundred sixty-four thousand, one hundred thirty-one".