1173198366720 has 1152 divisors, whose sum is σ = 4510202860800. Its totient is φ = 288628015104.

The previous prime is 1173198366679. The next prime is 1173198366787. The reversal of 1173198366720 is 276638913711.

1173198366720 is a `hidden beast` number, since 1 + 1 + 73 + 198 + 366 + 7 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 19884718051 + ... + 19884718109.

It is an arithmetic number, because the mean of its divisors is an integer number (3915106650).

Almost surely, 2^{1173198366720} is an apocalyptic number.

1173198366720 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 1173198366720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2255101430400).

1173198366720 is an abundant number, since it is smaller than the sum of its proper divisors (3337004494080).

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

1173198366720 is an equidigital number, since it uses as much as digits as its factorization.

1173198366720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The spelling of 1173198366720 in words is "one trillion, one hundred seventy-three billion, one hundred ninety-eight million, three hundred sixty-six thousand, seven hundred twenty".