2666020402 has 16 divisors (see below), whose sum is σ = 4158604800. Its totient is φ = 1280300560.

The previous prime is 2666020391. The next prime is 2666020463. The reversal of 2666020402 is 2040206662.

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 7 ways as a sum of consecutive naturals, for example, 109252 + ... + 131407.

It is an arithmetic number, because the mean of its divisors is an integer number (259912800).

Almost surely, 2^2666020402 is an apocalyptic number.

2666020402 is a deficient number, since it is larger than the sum of its proper divisors (1492584398).

2666020402 is a wasteful number, since it uses less digits than its factorization.

2666020402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240881.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 2666020402 is about 51633.5201395373. The cubic root of 2666020402 is about 1386.6105159272.

The spelling of 2666020402 in words is "two billion, six hundred sixty-six million, twenty thousand, four hundred two".