1997341171200 has 180 divisors, whose sum is σ = 7147933114608. Its totient is φ = 532624281600.

The previous prime is 1997341171169. The next prime is 1997341171237. The reversal of 1997341171200 is 21711437991.

It is a happy number.

1997341171200 is a `hidden beast` number, since 1 + 9 + 97 + 341 + 17 + 1 + 200 = 666.

It is a tau number, because it is divible by the number of its divisors (180).

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 polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8553816 + ... + 8784215.

Almost surely, 2^{1997341171200} is an apocalyptic number.

1997341171200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1997341171200 is an abundant number, since it is smaller than the sum of its proper divisors (5150591943408).

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

1997341171200 is a wasteful number, since it uses less digits than its factorization.

1997341171200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17338065 (or 17338041 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 45.

The spelling of 1997341171200 in words is "one trillion, nine hundred ninety-seven billion, three hundred forty-one million, one hundred seventy-one thousand, two hundred".