69816664680 has 512 divisors, whose sum is σ = 260855562240. Its totient is φ = 14602199040.

The previous prime is 69816664679. The next prime is 69816664711. The reversal of 69816664680 is 8646661896.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 41981529 + ... + 41983191.

It is an arithmetic number, because the mean of its divisors is an integer number (509483520).

Almost surely, 2^69816664680 is an apocalyptic number.

69816664680 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 69816664680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130427781120).

69816664680 is an abundant number, since it is smaller than the sum of its proper divisors (191038897560).

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

69816664680 is a wasteful number, since it uses less digits than its factorization.

69816664680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801 (or 1797 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 60.

The spelling of 69816664680 in words is "sixty-nine billion, eight hundred sixteen million, six hundred sixty-four thousand, six hundred eighty".