6900531606 has 72 divisors (see below), whose sum is σ = 16002786384. Its totient is φ = 2148279840.

The previous prime is 6900531601. The next prime is 6900531613. The reversal of 6900531606 is 6061350096.

6900531606 is a `hidden beast` number, since 69 + 0 + 0 + 531 + 60 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6900531601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 453880 + ... + 468836.

It is an arithmetic number, because the mean of its divisors is an integer number (222260922).

Almost surely, 2^6900531606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6900531606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8001393192).

6900531606 is an abundant number, since it is smaller than the sum of its proper divisors (9102254778).

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

6900531606 is a wasteful number, since it uses less digits than its factorization.

6900531606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15074 (or 15052 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 6900531606 is about 83069.4384596405. The cubic root of 6900531606 is about 1903.8271524926.

The spelling of 6900531606 in words is "six billion, nine hundred million, five hundred thirty-one thousand, six hundred six".