1556255151360 has 1440 divisors, whose sum is σ = 6889726432512. Its totient is φ = 326626836480.

The previous prime is 1556255151349. The next prime is 1556255151361. The reversal of 1556255151360 is 631515526551.

1556255151360 is a `hidden beast` number, since 1 + 5 + 5 + 6 + 25 + 51 + 513 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (1440).

It is a super-2 number, since 2×1556255151360² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1556255151361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 2651200987 + ... + 2651201573.

Almost surely, 2^{1556255151360} is an apocalyptic number.

1556255151360 is a gapful number since it is divisible by the number (10) 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 1556255151360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3444863216256).

1556255151360 is an abundant number, since it is smaller than the sum of its proper divisors (5333471281152).

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

1556255151360 is a wasteful number, since it uses less digits than its factorization.

1556255151360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921 (or 898 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 45.

The spelling of 1556255151360 in words is "one trillion, five hundred fifty-six billion, two hundred fifty-five million, one hundred fifty-one thousand, three hundred sixty".