666422460026 has 16 divisors (see below), whose sum is σ = 1060591371840. Its totient is φ = 312971843520.

The previous prime is 666422459999. The next prime is 666422460029. The reversal of 666422460026 is 620064224666.

It is not an unprimeable number, because it can be changed into a prime (666422460029) 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, 19943246 + ... + 19976633.

It is an arithmetic number, because the mean of its divisors is an integer number (66286960740).

Almost surely, 2^666422460026 is an apocalyptic number.

666422460026 is a deficient number, since it is larger than the sum of its proper divisors (394168911814).

666422460026 is a wasteful number, since it uses less digits than its factorization.

666422460026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39920389.

The product of its (nonzero) digits is 995328, while the sum is 44.

The spelling of 666422460026 in words is "six hundred sixty-six billion, four hundred twenty-two million, four hundred sixty thousand, twenty-six".