669471369600 has 768 divisors, whose sum is σ = 2616132556800. Its totient is φ = 148606156800.

The previous prime is 669471369587. The next prime is 669471369641. The reversal of 669471369600 is 6963174966.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 66417361 + ... + 66427439.

It is an arithmetic number, because the mean of its divisors is an integer number (3406422600).

Almost surely, 2^669471369600 is an apocalyptic number.

669471369600 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 669471369600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1308066278400).

669471369600 is an abundant number, since it is smaller than the sum of its proper divisors (1946661187200).

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

669471369600 is a wasteful number, since it uses less digits than its factorization.

669471369600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10171 (or 10154 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 57.

The spelling of 669471369600 in words is "six hundred sixty-nine billion, four hundred seventy-one million, three hundred sixty-nine thousand, six hundred".