197249666352 has 160 divisors (see below), whose sum is σ = 530268560640. Its totient is φ = 63132733440.

The previous prime is 197249666321. The next prime is 197249666437. The reversal of 197249666352 is 253666942791.

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, 84329599 + ... + 84331937.

It is an arithmetic number, because the mean of its divisors is an integer number (3314178504).

Almost surely, 2^197249666352 is an apocalyptic number.

197249666352 is a gapful number since it is divisible by the number (12) 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 197249666352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265134280320).

197249666352 is an abundant number, since it is smaller than the sum of its proper divisors (333018894288).

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

197249666352 is a wasteful number, since it uses less digits than its factorization.

197249666352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3051 (or 3045 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 60.

The spelling of 197249666352 in words is "one hundred ninety-seven billion, two hundred forty-nine million, six hundred sixty-six thousand, three hundred fifty-two".