561840482766 has 16 divisors (see below), whose sum is σ = 1126742770944. Its totient is φ = 186769860024.

The previous prime is 561840482759. The next prime is 561840482783. The reversal of 561840482766 is 667284048165.

561840482766 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127572840 + ... + 127577243.

It is an arithmetic number, because the mean of its divisors is an integer number (70421423184).

Almost surely, 2^561840482766 is an apocalyptic number.

561840482766 is an abundant number, since it is smaller than the sum of its proper divisors (564902288178).

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

561840482766 is a wasteful number, since it uses less digits than its factorization.

561840482766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255150455.

The product of its (nonzero) digits is 15482880, while the sum is 57.

The spelling of 561840482766 in words is "five hundred sixty-one billion, eight hundred forty million, four hundred eighty-two thousand, seven hundred sixty-six".