2106623364240 has 80 divisors (see below), whose sum is σ = 6550262381376. Its totient is φ = 560069030400.

The previous prime is 2106623364211. The next prime is 2106623364253. The reversal of 2106623364240 is 424633266012.

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

It is an unprimeable number.

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, 13179771 + ... + 13338650.

Almost surely, 2^{2106623364240} is an apocalyptic number.

2106623364240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2106623364240 is an abundant number, since it is smaller than the sum of its proper divisors (4443639017136).

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

2106623364240 is a wasteful number, since it uses less digits than its factorization.

2106623364240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26518768 (or 26518762 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 39.

The spelling of 2106623364240 in words is "two trillion, one hundred six billion, six hundred twenty-three million, three hundred sixty-four thousand, two hundred forty".