2666140473 has 16 divisors (see below), whose sum is σ = 3716749440. Its totient is φ = 1696785024.

The previous prime is 2666140469. The next prime is 2666140483. The reversal of 2666140473 is 3740416662.

It is a happy number.

It is not a de Polignac number, because 2666140473 - 2² = 2666140469 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2666140403) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2836 + ... + 73077.

It is an arithmetic number, because the mean of its divisors is an integer number (232296840).

Almost surely, 2^2666140473 is an apocalyptic number.

2666140473 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2666140473 is a deficient number, since it is larger than the sum of its proper divisors (1050608967).

2666140473 is a wasteful number, since it uses less digits than its factorization.

2666140473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76448.

The product of its (nonzero) digits is 145152, while the sum is 39.

The square root of 2666140473 is about 51634.6828498055. The cubic root of 2666140473 is about 1386.6313321235.

The spelling of 2666140473 in words is "two billion, six hundred sixty-six million, one hundred forty thousand, four hundred seventy-three".