2066726198 has 4 divisors (see below), whose sum is σ = 3100089300. Its totient is φ = 1033363098.

The previous prime is 2066726191. The next prime is 2066726201. The reversal of 2066726198 is 8916276602.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066726191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 516681548 + ... + 516681551.

It is an arithmetic number, because the mean of its divisors is an integer number (775022325).

Almost surely, 2^2066726198 is an apocalyptic number.

2066726198 is a deficient number, since it is larger than the sum of its proper divisors (1033363102).

2066726198 is a wasteful number, since it uses less digits than its factorization.

2066726198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033363101.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 2066726198 is about 45461.2604092759. The cubic root of 2066726198 is about 1273.7796752338.

The spelling of 2066726198 in words is "two billion, sixty-six million, seven hundred twenty-six thousand, one hundred ninety-eight".