6220544656401 has 120 divisors (see below), whose sum is σ = 10094556326400. Its totient is φ = 3678448557312.

The previous prime is 6220544656397. The next prime is 6220544656409. The reversal of 6220544656401 is 1046564450226.

6220544656401 is a `hidden beast` number, since 6 + 2 + 2 + 0 + 544 + 65 + 6 + 40 + 1 = 666.

It is not a de Polignac number, because 6220544656401 - 2² = 6220544656397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6220544656409) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 4446421500 + ... + 4446422898.

It is an arithmetic number, because the mean of its divisors is an integer number (84121302720).

Almost surely, 2^{6220544656401} is an apocalyptic number.

It is an amenable number.

6220544656401 is a deficient number, since it is larger than the sum of its proper divisors (3874011669999).

6220544656401 is a wasteful number, since it uses less digits than its factorization.

6220544656401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721 (or 1661 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 45.

The spelling of 6220544656401 in words is "six trillion, two hundred twenty billion, five hundred forty-four million, six hundred fifty-six thousand, four hundred one".