2169020235680 has 24 divisors (see below), whose sum is σ = 5124310307172. Its totient is φ = 867608094208.

The previous prime is 2169020235667. The next prime is 2169020235689. The reversal of 2169020235680 is 865320209612.

It can be written as a sum of positive squares in 2 ways, for example, as 1870034370064 + 298985865616 = 1367492^2 + 546796^2 .

It is not an unprimeable number, because it can be changed into a prime (2169020235689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6778188077 + ... + 6778188396.

Almost surely, 2^{2169020235680} is an apocalyptic number.

2169020235680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2169020235680 is an abundant number, since it is smaller than the sum of its proper divisors (2955290071492).

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

2169020235680 is a wasteful number, since it uses less digits than its factorization.

2169020235680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13556376488 (or 13556376480 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 2169020235680 in words is "two trillion, one hundred sixty-nine billion, twenty million, two hundred thirty-five thousand, six hundred eighty".