1225489858560 has 1440 divisors, whose sum is σ = 5062265577600. Its totient is φ = 280284364800.

The previous prime is 1225489858487. The next prime is 1225489858583. The reversal of 1225489858560 is 658589845221.

It is a happy number.

1225489858560 is a `hidden beast` number, since 1 + 2 + 2 + 5 + 48 + 9 + 8 + 585 + 6 + 0 = 666.

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

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5085020040 + ... + 5085020280.

Almost surely, 2^{1225489858560} is an apocalyptic number.

1225489858560 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 1225489858560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2531132788800).

1225489858560 is an abundant number, since it is smaller than the sum of its proper divisors (3836775719040).

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

1225489858560 is a wasteful number, since it uses less digits than its factorization.

1225489858560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 55296000, while the sum is 63.

The spelling of 1225489858560 in words is "one trillion, two hundred twenty-five billion, four hundred eighty-nine million, eight hundred fifty-eight thousand, five hundred sixty".