2140785866556 has 48 divisors (see below), whose sum is σ = 5791498003200. Its totient is φ = 682569405936.

The previous prime is 2140785866473. The next prime is 2140785866581. The reversal of 2140785866556 is 6556685870412.

2140785866556 is a `hidden beast` number, since 2 + 1 + 4 + 0 + 78 + 5 + 8 + 6 + 6 + 556 = 666.

It is a super-2 number, since 2×2140785866556² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2140785866493 and 2140785866502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 430912546 + ... + 430917513.

It is an arithmetic number, because the mean of its divisors is an integer number (120656208400).

Almost surely, 2^{2140785866556} is an apocalyptic number.

It is an amenable number.

2140785866556 is an abundant number, since it is smaller than the sum of its proper divisors (3650712136644).

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

2140785866556 is a wasteful number, since it uses less digits than its factorization.

2140785866556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861830095 (or 861830087 counting only the distinct ones).

The product of its (nonzero) digits is 96768000, while the sum is 63.

The spelling of 2140785866556 in words is "two trillion, one hundred forty billion, seven hundred eighty-five million, eight hundred sixty-six thousand, five hundred fifty-six".