561558847206 has 32 divisors (see below), whose sum is σ = 1285935706368. Its totient is φ = 160148806560.

The previous prime is 561558847193. The next prime is 561558847253. The reversal of 561558847206 is 602748855165.

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, 12334440 + ... + 12379883.

It is an arithmetic number, because the mean of its divisors is an integer number (40185490824).

Almost surely, 2^561558847206 is an apocalyptic number.

561558847206 is an abundant number, since it is smaller than the sum of its proper divisors (724376859162).

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

561558847206 is a wasteful number, since it uses less digits than its factorization.

561558847206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24714876.

The product of its (nonzero) digits is 16128000, while the sum is 57.

The spelling of 561558847206 in words is "five hundred sixty-one billion, five hundred fifty-eight million, eight hundred forty-seven thousand, two hundred six".