880665785664 has 336 divisors, whose sum is σ = 2853476201088. Its totient is φ = 238542323712.

The previous prime is 880665785653. The next prime is 880665785707. The reversal of 880665785664 is 466587566088.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24433384 + ... + 24469400.

Almost surely, 2^880665785664 is an apocalyptic number.

880665785664 is a gapful number since it is divisible by the number (84) 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 880665785664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1426738100544).

880665785664 is an abundant number, since it is smaller than the sum of its proper divisors (1972810415424).

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

880665785664 is a wasteful number, since it uses less digits than its factorization.

880665785664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36182 (or 36165 counting only the distinct ones).

The product of its (nonzero) digits is 464486400, while the sum is 69.

The spelling of 880665785664 in words is "eight hundred eighty billion, six hundred sixty-five million, seven hundred eighty-five thousand, six hundred sixty-four".