2666406502 has 16 divisors (see below), whose sum is σ = 4089550752. Its totient is φ = 1303485120.

The previous prime is 2666406487. The next prime is 2666406511. The reversal of 2666406502 is 2056046662.

It is a happy number.

It is a congruent number.

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, 45063 + ... + 85810.

It is an arithmetic number, because the mean of its divisors is an integer number (255596922).

Almost surely, 2^2666406502 is an apocalyptic number.

2666406502 is a deficient number, since it is larger than the sum of its proper divisors (1423144250).

2666406502 is a wasteful number, since it uses less digits than its factorization.

2666406502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131103.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 2666406502 is about 51637.2588544357. The cubic root of 2666406502 is about 1386.6774502084.

The spelling of 2666406502 in words is "two billion, six hundred sixty-six million, four hundred six thousand, five hundred two".