69909548776816 has 320 divisors, whose sum is σ = 170890598301696. Its totient is φ = 27044521574400.

The previous prime is 69909548776763. The next prime is 69909548776919. The reversal of 69909548776816 is 61867784590996.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9275510200 + ... + 9275517736.

Almost surely, 2^{69909548776816} 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 69909548776816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85445299150848).

69909548776816 is an abundant number, since it is smaller than the sum of its proper divisors (100981049524880).

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

69909548776816 is a wasteful number, since it uses less digits than its factorization.

69909548776816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10480 (or 10474 counting only the distinct ones).

The product of its (nonzero) digits is 9876142080, while the sum is 85.

The spelling of 69909548776816 in words is "sixty-nine trillion, nine hundred nine billion, five hundred forty-eight million, seven hundred seventy-six thousand, eight hundred sixteen".