197222065968 has 160 divisors (see below), whose sum is σ = 540788244480. Its totient is φ = 61844290560.

The previous prime is 197222065903. The next prime is 197222065969. The reversal of 197222065968 is 869560222791.

It is a super-2 number, since 2×197222065968² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (197222065969) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8584705 + ... + 8607647.

It is an arithmetic number, because the mean of its divisors is an integer number (3379926528).

Almost surely, 2^197222065968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197222065968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270394122240).

197222065968 is an abundant number, since it is smaller than the sum of its proper divisors (343566178512).

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

197222065968 is a wasteful number, since it uses less digits than its factorization.

197222065968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23147 (or 23141 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 197222065968 in words is "one hundred ninety-seven billion, two hundred twenty-two million, sixty-five thousand, nine hundred sixty-eight".