3561856222722 has 16 divisors (see below), whose sum is σ = 8141385652032. Its totient is φ = 1017673206480.

The previous prime is 3561856222681. The next prime is 3561856222741. The reversal of 3561856222722 is 2272226581653.

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, 42403050229 + ... + 42403050312.

It is an arithmetic number, because the mean of its divisors is an integer number (508836603252).

Almost surely, 2^{3561856222722} is an apocalyptic number.

3561856222722 is an abundant number, since it is smaller than the sum of its proper divisors (4579529429310).

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

3561856222722 is a wasteful number, since it uses less digits than its factorization.

3561856222722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84806100553.

The product of its digits is 4838400, while the sum is 51.

The spelling of 3561856222722 in words is "three trillion, five hundred sixty-one billion, eight hundred fifty-six million, two hundred twenty-two thousand, seven hundred twenty-two".