1191198714552 has 288 divisors, whose sum is σ = 4101227460720. Its totient is φ = 308860231680.

The previous prime is 1191198714533. The next prime is 1191198714617. The reversal of 1191198714552 is 2554178911911.

1191198714552 is a `hidden beast` number, since 1 + 1 + 9 + 1 + 1 + 9 + 87 + 1 + 4 + 552 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 22365618 + ... + 22418814.

Almost surely, 2^{1191198714552} is an apocalyptic number.

1191198714552 is a gapful number since it is divisible by the number (12) 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 1191198714552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2050613730360).

1191198714552 is an abundant number, since it is smaller than the sum of its proper divisors (2910028746168).

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

1191198714552 is a wasteful number, since it uses less digits than its factorization.

1191198714552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53811 (or 53797 counting only the distinct ones).

The product of its digits is 907200, while the sum is 54.

The spelling of 1191198714552 in words is "one trillion, one hundred ninety-one billion, one hundred ninety-eight million, seven hundred fourteen thousand, five hundred fifty-two".