197601436512 has 72 divisors (see below), whose sum is σ = 575634706920. Its totient is φ = 64260625920.

The previous prime is 197601436499. The next prime is 197601436519. The reversal of 197601436512 is 215634106791.

197601436512 is a `hidden beast` number, since 1 + 9 + 7 + 601 + 4 + 36 + 5 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×197601436512² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197601436519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8355462 + ... + 8379077.

It is an arithmetic number, because the mean of its divisors is an integer number (7994926485).

Almost surely, 2^197601436512 is an apocalyptic number.

197601436512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

197601436512 is an abundant number, since it is smaller than the sum of its proper divisors (378033270408).

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

197601436512 is a wasteful number, since it uses less digits than its factorization.

197601436512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16734596 (or 16734585 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 197601436512 in words is "one hundred ninety-seven billion, six hundred one million, four hundred thirty-six thousand, five hundred twelve".