1153995798780 has 384 divisors, whose sum is σ = 3964625280000. Its totient is φ = 276341621760.

The previous prime is 1153995798779. The next prime is 1153995798797. The reversal of 1153995798780 is 878975993511.

1153995798780 is a `hidden beast` number, since 1 + 1 + 539 + 9 + 5 + 7 + 9 + 8 + 7 + 80 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1153995798699 and 1153995798708.

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, 225960987 + ... + 225966093.

It is an arithmetic number, because the mean of its divisors is an integer number (10324545000).

Almost surely, 2^{1153995798780} is an apocalyptic number.

1153995798780 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 1153995798780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1982312640000).

1153995798780 is an abundant number, since it is smaller than the sum of its proper divisors (2810629481220).

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

1153995798780 is a wasteful number, since it uses less digits than its factorization.

1153995798780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5594 (or 5586 counting only the distinct ones).

The product of its (nonzero) digits is 171460800, while the sum is 72.

The spelling of 1153995798780 in words is "one trillion, one hundred fifty-three billion, nine hundred ninety-five million, seven hundred ninety-eight thousand, seven hundred eighty".