196168557747040 has 432 divisors, whose sum is σ = 507790407060720. Its totient is φ = 71526755328000.

The previous prime is 196168557746971. The next prime is 196168557747079. The reversal of 196168557747040 is 40747755861691.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7495633155 + ... + 7495659325.

It is an arithmetic number, because the mean of its divisors is an integer number (1175440757085).

Almost surely, 2^{196168557747040} is an apocalyptic number.

196168557747040 is a gapful number since it is divisible by the number (10) 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 196168557747040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253895203530360).

196168557747040 is an abundant number, since it is smaller than the sum of its proper divisors (311621849313680).

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

196168557747040 is a wasteful number, since it uses less digits than its factorization.

196168557747040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26359 (or 26279 counting only the distinct ones).

The product of its (nonzero) digits is 355622400, while the sum is 70.

The spelling of 196168557747040 in words is "one hundred ninety-six trillion, one hundred sixty-eight billion, five hundred fifty-seven million, seven hundred forty-seven thousand, forty".