2198178193050 has 288 divisors, whose sum is σ = 7048942410240. Its totient is φ = 502240435200.

The previous prime is 2198178193007. The next prime is 2198178193051. The reversal of 2198178193050 is 503918718912.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2198178193051) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 222325207 + ... + 222335093.

It is an arithmetic number, because the mean of its divisors is an integer number (24475494480).

Almost surely, 2^{2198178193050} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2198178193050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3524471205120).

2198178193050 is an abundant number, since it is smaller than the sum of its proper divisors (4850764217190).

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

2198178193050 is a wasteful number, since it uses less digits than its factorization.

2198178193050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13283 (or 13265 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 54.

The spelling of 2198178193050 in words is "two trillion, one hundred ninety-eight billion, one hundred seventy-eight million, one hundred ninety-three thousand, fifty".