6662169072 has 120 divisors (see below), whose sum is σ = 20771587200. Its totient is φ = 1979195904.

The previous prime is 6662169047. The next prime is 6662169077. The reversal of 6662169072 is 2709612666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6662169077) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7072 + ... + 115647.

It is an arithmetic number, because the mean of its divisors is an integer number (173096560).

Almost surely, 2^6662169072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6662169072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10385793600).

6662169072 is an abundant number, since it is smaller than the sum of its proper divisors (14109418128).

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

6662169072 is a wasteful number, since it uses less digits than its factorization.

6662169072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122775 (or 122766 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 6662169072 is about 81622.1114159638. Note that the first 3 decimals coincide. The cubic root of 6662169072 is about 1881.6487226858.

The spelling of 6662169072 in words is "six billion, six hundred sixty-two million, one hundred sixty-nine thousand, seventy-two".