5621081227776 has 1440 divisors, whose sum is σ = 20881525496832. Its totient is φ = 1444738498560.

The previous prime is 5621081227721. The next prime is 5621081227799. The reversal of 5621081227776 is 6777221801265.

5621081227776 is a `hidden beast` number, since 5 + 621 + 0 + 8 + 1 + 2 + 2 + 7 + 7 + 7 + 6 = 666.

It is a super-4 number, since 4×5621081227776⁴ (a number of 52 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 11542261005 + ... + 11542261491.

Almost surely, 2^{5621081227776} is an apocalyptic number.

5621081227776 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5621081227776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10440762748416).

5621081227776 is an abundant number, since it is smaller than the sum of its proper divisors (15260444269056).

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

5621081227776 is a wasteful number, since it uses less digits than its factorization.

5621081227776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670 (or 644 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 54.

The spelling of 5621081227776 in words is "five trillion, six hundred twenty-one billion, eighty-one million, two hundred twenty-seven thousand, seven hundred seventy-six".