5461222221644 has 24 divisors (see below), whose sum is σ = 10943408857248. Its totient is φ = 2336031434880.

The previous prime is 5461222221617. The next prime is 5461222221661. The reversal of 5461222221644 is 4461222221645.

It is a happy 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, 187167419 + ... + 187196594.

It is an arithmetic number, because the mean of its divisors is an integer number (455975369052).

Almost surely, 2^{5461222221644} is an apocalyptic number.

It is an amenable number.

5461222221644 is an abundant number, since it is smaller than the sum of its proper divisors (5482186635604).

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

5461222221644 is a wasteful number, since it uses less digits than its factorization.

5461222221644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374364545 (or 374364543 counting only the distinct ones).

The product of its digits is 368640, while the sum is 41.

Subtracting from 5461222221644 its reverse (4461222221645), we obtain a palindrome (999999999999).

The spelling of 5461222221644 in words is "five trillion, four hundred sixty-one billion, two hundred twenty-two million, two hundred twenty-one thousand, six hundred forty-four".