1197712656000 has 1920 divisors, whose sum is σ = 5291791464960. Its totient is φ = 262882713600.

The previous prime is 1197712655987. The next prime is 1197712656011. The reversal of 1197712656000 is 6562177911.

1197712656000 is a `hidden beast` number, since 1 + 1 + 9 + 77 + 12 + 6 + 560 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1920).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 22598351974 + ... + 22598352026.

It is an arithmetic number, because the mean of its divisors is an integer number (2756141388).

Almost surely, 2^{1197712656000} is an apocalyptic number.

1197712656000 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 1197712656000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2645895732480).

1197712656000 is an abundant number, since it is smaller than the sum of its proper divisors (4094078808960).

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

1197712656000 is an frugal number, since it uses more digits than its factorization.

1197712656000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 45.

The spelling of 1197712656000 in words is "one trillion, one hundred ninety-seven billion, seven hundred twelve million, six hundred fifty-six thousand".