2040286561656 has 64 divisors (see below), whose sum is σ = 6172295489280. Its totient is φ = 548648486400.

The previous prime is 2040286561603. The next prime is 2040286561697. The reversal of 2040286561656 is 6561656820402.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 2040286561599 and 2040286561608.

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, 357190170 + ... + 357195881.

It is an arithmetic number, because the mean of its divisors is an integer number (96442117020).

Almost surely, 2^{2040286561656} is an apocalyptic number.

It is an amenable number.

2040286561656 is an abundant number, since it is smaller than the sum of its proper divisors (4132008927624).

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

2040286561656 is a wasteful number, since it uses less digits than its factorization.

2040286561656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714386084 (or 714386080 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 51.

The spelling of 2040286561656 in words is "two trillion, forty billion, two hundred eighty-six million, five hundred sixty-one thousand, six hundred fifty-six".