69990320332800 has 2016 divisors, whose sum is σ = 306764783130624. Its totient is φ = 15479341056000.

The previous prime is 69990320332789. The next prime is 69990320332813. The reversal of 69990320332800 is 823302309996.

69990320332800 is a `hidden beast` number, since 6 + 9 + 9 + 9 + 0 + 320 + 33 + 280 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2016).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 10799305560 + ... + 10799312040.

Almost surely, 2^{69990320332800} is an apocalyptic number.

69990320332800 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 69990320332800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153382391565312).

69990320332800 is an abundant number, since it is smaller than the sum of its proper divisors (236774462797824).

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

69990320332800 is an equidigital number, since it uses as much as digits as its factorization.

69990320332800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6570 (or 6529 counting only the distinct ones).

The product of its (nonzero) digits is 3779136, while the sum is 54.

The spelling of 69990320332800 in words is "sixty-nine trillion, nine hundred ninety billion, three hundred twenty million, three hundred thirty-two thousand, eight hundred".