2666354047 has 8 divisors (see below), whose sum is σ = 3152340000. Its totient is φ = 2206637664.

The previous prime is 2666354021. The next prime is 2666354063. The reversal of 2666354047 is 7404536662.

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

It is not a de Polignac number, because 2666354047 - 2¹⁵ = 2666321279 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2666353994 and 2666354012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666354077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6567172 + ... + 6567577.

It is an arithmetic number, because the mean of its divisors is an integer number (394042500).

Almost surely, 2^2666354047 is an apocalyptic number.

2666354047 is a deficient number, since it is larger than the sum of its proper divisors (485985953).

2666354047 is a wasteful number, since it uses less digits than its factorization.

2666354047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13134785.

The product of its (nonzero) digits is 725760, while the sum is 43.

The square root of 2666354047 is about 51636.7509338068. The cubic root of 2666354047 is about 1386.6683569909.

The spelling of 2666354047 in words is "two billion, six hundred sixty-six million, three hundred fifty-four thousand, forty-seven".