6557904564246 has 192 divisors, whose sum is σ = 17290133572608. Its totient is φ = 1755781657344.

The previous prime is 6557904564241. The next prime is 6557904564271. The reversal of 6557904564246 is 6424654097556.

It is a happy number.

6557904564246 is a `hidden beast` number, since 6 + 5 + 57 + 90 + 456 + 4 + 2 + 46 = 666.

It is a super-2 number, since 2×6557904564246² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6557904564241) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 103951605 + ... + 104014671.

It is an arithmetic number, because the mean of its divisors is an integer number (90052779024).

Almost surely, 2^{6557904564246} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6557904564246, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8645066786304).

6557904564246 is an abundant number, since it is smaller than the sum of its proper divisors (10732229008362).

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

6557904564246 is a wasteful number, since it uses less digits than its factorization.

6557904564246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63835 (or 63832 counting only the distinct ones).

The product of its (nonzero) digits is 217728000, while the sum is 63.

The spelling of 6557904564246 in words is "six trillion, five hundred fifty-seven billion, nine hundred four million, five hundred sixty-four thousand, two hundred forty-six".