1170261000000 has 784 divisors, whose sum is σ = 4357631721600. Its totient is φ = 307929600000.

The previous prime is 1170260999953. The next prime is 1170261000017. The reversal of 1170261000000 is 1620711.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 2402999757 + ... + 2403000243.

Almost surely, 2^{1170261000000} is an apocalyptic number.

1170261000000 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 1170261000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2178815860800).

1170261000000 is an abundant number, since it is smaller than the sum of its proper divisors (3187370721600).

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

1170261000000 is an frugal number, since it uses more digits than its factorization.

1170261000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627 (or 586 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

Adding to 1170261000000 its reverse (1620711), we get a palindrome (1170262620711).

The spelling of 1170261000000 in words is "one trillion, one hundred seventy billion, two hundred sixty-one million", and thus it is an aban number.