5661960198 has 16 divisors (see below), whose sum is σ = 11336416320. Its totient is φ = 1885237416.

The previous prime is 5661960197. The next prime is 5661960221. The reversal of 5661960198 is 8910691665.

It is a self number, because there is not a number n which added to its sum of digits gives 5661960198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5661960191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 514768 + ... + 525651.

It is an arithmetic number, because the mean of its divisors is an integer number (708526020).

Almost surely, 2^5661960198 is an apocalyptic number.

5661960198 is an abundant number, since it is smaller than the sum of its proper divisors (5674456122).

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

5661960198 is a wasteful number, since it uses less digits than its factorization.

5661960198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041331.

The product of its (nonzero) digits is 699840, while the sum is 51.

The square root of 5661960198 is about 75245.9978869308. The cubic root of 5661960198 is about 1782.3333660677. Note that the first 4 decimals are identical.

The spelling of 5661960198 in words is "five billion, six hundred sixty-one million, nine hundred sixty thousand, one hundred ninety-eight".