6221028651600 has 720 divisors, whose sum is σ = 23964287187456. Its totient is φ = 1374073344000.

The previous prime is 6221028651589. The next prime is 6221028651619. The reversal of 6221028651600 is 61568201226.

It is a Cunningham number, because it is equal to 2494199²-1.

It is a super-2 number, since 2×6221028651600² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

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, 1496516722 + ... + 1496520878.

Almost surely, 2^{6221028651600} is an apocalyptic number.

6221028651600 is a gapful number since it is divisible by the number (60) 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 6221028651600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11982143593728).

6221028651600 is an abundant number, since it is smaller than the sum of its proper divisors (17743258535856).

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

6221028651600 is a wasteful number, since it uses less digits than its factorization.

6221028651600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5044 (or 5026 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 6221028651600 in words is "six trillion, two hundred twenty-one billion, twenty-eight million, six hundred fifty-one thousand, six hundred".