2169059630640 has 80 divisors (see below), whose sum is σ = 7684668411648. Its totient is φ = 495785058048.

The previous prime is 2169059630561. The next prime is 2169059630641. The reversal of 2169059630640 is 460369509612.

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2169059630641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 645551782 + ... + 645555141.

Almost surely, 2^{2169059630640} is an apocalyptic number.

2169059630640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2169059630640 is an abundant number, since it is smaller than the sum of its proper divisors (5515608781008).

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

2169059630640 is a wasteful number, since it uses less digits than its factorization.

2169059630640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291106946 (or 1291106940 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 51.

The spelling of 2169059630640 in words is "two trillion, one hundred sixty-nine billion, fifty-nine million, six hundred thirty thousand, six hundred forty".