196161555150 has 144 divisors (see below), whose sum is σ = 576415316880. Its totient is φ = 47431603200.

The previous prime is 196161555127. The next prime is 196161555151. The reversal of 196161555150 is 51555161691.

196161555150 is a `hidden beast` number, since 1 + 9 + 616 + 15 + 5 + 5 + 15 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 196161555096 and 196161555105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196161555151) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1874614 + ... + 1976486.

It is an arithmetic number, because the mean of its divisors is an integer number (4002884145).

Almost surely, 2^196161555150 is an apocalyptic number.

196161555150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 196161555150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288207658440).

196161555150 is an abundant number, since it is smaller than the sum of its proper divisors (380253761730).

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

196161555150 is a wasteful number, since it uses less digits than its factorization.

196161555150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102291 (or 102283 counting only the distinct ones).

The product of its (nonzero) digits is 202500, while the sum is 45.

The spelling of 196161555150 in words is "one hundred ninety-six billion, one hundred sixty-one million, five hundred fifty-five thousand, one hundred fifty".