2168342107920 has 160 divisors (see below), whose sum is σ = 7908071351040. Its totient is φ = 544211343360.

The previous prime is 2168342107889. The next prime is 2168342107927. The reversal of 2168342107920 is 297012438612.

2168342107920 is a `hidden beast` number, since 216 + 8 + 3 + 421 + 0 + 7 + 9 + 2 + 0 = 666.

It is a super-3 number, since 3×2168342107920³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (2168342107927) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29488636 + ... + 29562075.

It is an arithmetic number, because the mean of its divisors is an integer number (49425445944).

Almost surely, 2^{2168342107920} is an apocalyptic number.

2168342107920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2168342107920 is an abundant number, since it is smaller than the sum of its proper divisors (5739729243120).

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

2168342107920 is a wasteful number, since it uses less digits than its factorization.

2168342107920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59050750 (or 59050738 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 2168342107920 in words is "two trillion, one hundred sixty-eight billion, three hundred forty-two million, one hundred seven thousand, nine hundred twenty".