196662022128 has 240 divisors, whose sum is σ = 651952959840. Its totient is φ = 55009658880.

The previous prime is 196662022091. The next prime is 196662022177. The reversal of 196662022128 is 821220266691.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2452168 + ... + 2531096.

It is an arithmetic number, because the mean of its divisors is an integer number (2716470666).

Almost surely, 2^196662022128 is an apocalyptic number.

196662022128 is a gapful number since it is divisible by the number (18) 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 196662022128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325976479920).

196662022128 is an abundant number, since it is smaller than the sum of its proper divisors (455290937712).

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

196662022128 is a wasteful number, since it uses less digits than its factorization.

196662022128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78989 (or 78958 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 196662022128 in words is "one hundred ninety-six billion, six hundred sixty-two million, twenty-two thousand, one hundred twenty-eight".