6557153543512 has 512 divisors, whose sum is σ = 15427976739840. Its totient is φ = 2572922880000.

The previous prime is 6557153543503. The next prime is 6557153543561. The reversal of 6557153543512 is 2153453517556.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a self number, because there is not a number n which added to its sum of digits gives 6557153543512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 23170153723 + ... + 23170154005.

It is an arithmetic number, because the mean of its divisors is an integer number (30132767070).

Almost surely, 2^{6557153543512} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6557153543512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7713988369920).

6557153543512 is an abundant number, since it is smaller than the sum of its proper divisors (8870823196328).

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

6557153543512 is a wasteful number, since it uses less digits than its factorization.

6557153543512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595 (or 591 counting only the distinct ones).

The product of its digits is 9450000, while the sum is 52.

The spelling of 6557153543512 in words is "six trillion, five hundred fifty-seven billion, one hundred fifty-three million, five hundred forty-three thousand, five hundred twelve".