2066519402 has 8 divisors (see below), whose sum is σ = 3100037700. Its totient is φ = 1033173504.

The previous prime is 2066519383. The next prime is 2066519419. The reversal of 2066519402 is 2049156602.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1853388601 + 213130801 = 43051^2 + 14599^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7127 + ... + 64682.

Almost surely, 2^2066519402 is an apocalyptic number.

2066519402 is a deficient number, since it is larger than the sum of its proper divisors (1033518298).

2066519402 is a wasteful number, since it uses less digits than its factorization.

2066519402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86200.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 2066519402 is about 45458.9859323765. The cubic root of 2066519402 is about 1273.7371891467.

The spelling of 2066519402 in words is "two billion, sixty-six million, five hundred nineteen thousand, four hundred two".