2666404662 has 16 divisors (see below), whose sum is σ = 5336159472. Its totient is φ = 888243200.

The previous prime is 2666404597. The next prime is 2666404669. The reversal of 2666404662 is 2664046662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666404669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129183 + ... + 148394.

It is an arithmetic number, because the mean of its divisors is an integer number (333509967).

Almost surely, 2^2666404662 is an apocalyptic number.

2666404662 is an abundant number, since it is smaller than the sum of its proper divisors (2669754810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2666404662 is a wasteful number, since it uses less digits than its factorization.

2666404662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279183.

The product of its (nonzero) digits is 497664, while the sum is 42.

The square root of 2666404662 is about 51637.2410378401. The cubic root of 2666404662 is about 1386.6771312414.

The spelling of 2666404662 in words is "two billion, six hundred sixty-six million, four hundred four thousand, six hundred sixty-two".