197655675616 has 192 divisors, whose sum is σ = 487123144704. Its totient is φ = 76988620800.

The previous prime is 197655675601. The next prime is 197655675653. The reversal of 197655675616 is 616576556791.

It is a super-2 number, since 2×197655675616² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64570726 + ... + 64573786.

It is an arithmetic number, because the mean of its divisors is an integer number (2537099712).

Almost surely, 2^197655675616 is an apocalyptic number.

197655675616 is a gapful number since it is divisible by the number (16) 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 197655675616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243561572352).

197655675616 is an abundant number, since it is smaller than the sum of its proper divisors (289467469088).

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

197655675616 is a wasteful number, since it uses less digits than its factorization.

197655675616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3673 (or 3665 counting only the distinct ones).

The product of its digits is 71442000, while the sum is 64.

The spelling of 197655675616 in words is "one hundred ninety-seven billion, six hundred fifty-five million, six hundred seventy-five thousand, six hundred sixteen".